Drivers for TP-LINK TL-WN725N Nano USB Wireless N adapter
Even I had same problem and fixed it. Try the code below one by one in terminal having the adapter connected. You can see changes in terminal after each code.
sudo apt-get update
sudo apt-get install linux-headers-$(uname -r) build-essential git
git clone https://github.com/lwfinger/rtl8188eu
cd rtl8188eu
make all
sudo make install
sudo insmod 8188eu.ko
After this restart your system. You can find the network list. Hope this helps.
(More instructions in the package git.)
Have a look at My WiFi adapter is not working at all. Where to start troubleshooting?
Try:
sudo apt-get install linux-backports-modules-cw-3.6-precise-generic(You find more information to this at 1.)