Always remember that most search engines will permit you to use the "+" sign to focus the object of your search, hence the "Ricardo Narvaja" + Armadillo + English search suggestion. You can put quote marks around multiple words so it identifies that group, as in "Ricardo Narvaja" instead of ALL Ricardo hits.
I have always found that it helps avoid the 57 pages of unfocused hits to add one or two "+" subtopics. You can also use the "*" symbol to use part of a word as a search criteria, such as "Armadillo + 3.*+ tut*" should retrieve most "tuts" and/or "tutorials" on armadillo versions 3.00 and above.
Remember the brain is THE most important tool in reverse code engineering. If it's not fully engaged, none of the "other" tools are going to be of much use.
Regards.