Question
Thanks for your answer
These are some of the weed nutsedge,dollar weed,Carolina geranium,knotweed,moussear chickweed
My watering schedule right now is 2 times a week 20 min each area/zone
When the front part was resodded i was out the giving it water every day
This is what they put out in the beginning and what i can read out on the ticket
16-4-8   25 lbs
nitro mag
bifen
premcept
complety
30 gd
treated lawn with granular,liquid fertilizer , nutrients,weed control,insecticide
this are the words written in handwriting
i hope you van read something out of it
Many thanks for your help ... Ann

Answer
It appears that the dollarweed (grows from underground parts) and the nutsedge (grows from  underground nuts) managed to poke through the sod, likely through the seams. Both weeds thrive well in wetter (rather than drier) conditions. New sod needs to be carefully watered in order to help it to take root. But this very watering will help weeds to flourish.
Do you think that there is enough grass worth saving? Or are you prepared to resod the problem areas? Whatever your decision, here are the options.
Areas that can be saved: Precise weed control will have to be done. Atrazine is the standard chemical for St. Augustine. There are certain (hot) times of the year when it cannot be used. It may not do so well against the nutsedge and dollar weed. "Image" is a brand name product which will control nutsedge and dollar weed. It is expensive and I would use it as a spot spray on these problem weeds after atrazine has done its best. "Image" will temporarily discolor St. Augustine. Other brand names like "Manor" and "Manage" are very effective, very expensive and are probably best left to the professionals.
Areas to be resodded: Reduce the weed population by using a non selective systemic product like glyphosate ("Roundup"); give it at least a week and almost everything will turn brown. Whatever remains green, you can remove after rototilling. Rototill in all directions and rake out as much of the plant material as you can or they will re establish. Apply "Milorganite" before sodding; the organic matter will help the sod to root in. You will not get all the nuts that can be quite deep and these will quickly push up new nutsedge plants. Make it difficult for them by rototilling well, raking and proper sodding. Jam the sod pieces in as tightly as you can. Roll the entire job at the end to close all the seams. Scrutinize it daily. You are looking for opening seams and curling up corners, yellowing... in fact ANYTHING that will tell you that the sod pieces are drying out. Fill any openings with all-purpose sand and manage the watering carefully. Do not apply any chemical until at least after the first mowing. The watering program will probably wash it all away. Hand pull any weeds (they should be very few and far between).
I suppose this all seems quite daunting but it stretches out over time and if you approach each separate task with a determination to do it well, the end product will give you great pride.
There is an old adage which promises that "a journey of a thousand miles begins with the first step forward".