When conducting searches, the information and examples on this webpage are invaluable:
http://www.hackcollege.com/blog/2011/11/23/infographic-get-more-out-of-google.html
Scroll down below How to Google and find the specifics.
I'd start out using these search terms:
cost of living lebanon
food safety issues lebanon
Asking for academic facts on high cost of living in lebanon. As well, Food Safety issues.
Not wiki !!!!
2 answers
For scholarly articles only, use http://scholar.google.com