Not clear -- you want to find 10 words before, and 10 after any keyword, but only if the words are inside a paragraph?
Like, the keyword is the firs word in a given paragraph, so you'd only want 10 words after?
You just need to search for the line break before, and the line break after, then only search inside that block. Then, search for 10 space characters before and after, and include every character between those two indexes.
If you want to be hired without experience forget certifications. Spend your time actually learning the material and produce some really good work on your own time. When it comes to an interview, talk about the raytracer, or the mp3 management software, that you wrote.
Totally agree -- come up with some practical or interesting idea for a program, then just try to do it. You won't know what kind of knowledge you need when you start, so it'll be an adventure of learning. Way more fun and helpful than slogging through tutorials.
