your problem is with your failure to define everything well enough, your 50 plus files, sound like they have one word per line maybe, in which case "* <word> *" wouldnt have found them, but then russel wasnt to know your files had one word a line was he, you never said.

Now using "*<word>*" it well find "and" in "candle".

If u need to find exact words, please let us know of the exact formating of the files.