3 Google Tricks When You Don’t Know What to Search For, by Ann Smarty, Make Use Of (May 19)
Here are good tips on using three little known Google operators.
+ wildcard * to substitute for a word - put it between words or at the end
~ tilda as the "synonym operator". ~help will pick up tutorial, guide, tips and much more.
+ related - to find pages that are somewhat similar to the one you like.