program to pull strings from google web searches

I need a program where I can input say "cars". It then searches google for 'cars'. It then goes to every web page result (or the first 300), and looks for a string of characters that I specify. So each google result (website) needs to then be searched for 'strings' of text html. The strings all start with a certain word, then are preceded by % , and a word. I want just that word string that is after the % letter. Put that into a big .txt file. I can send an example of a page to interested coders. That's it! Then it takes those strings (just text words in html) and puts them in a large file. I don't care what you program it in, just as long as it runs on win32. I don't need a gui. .command line program, perl or whatever is fine. Thank you. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform windows