Can any one help me out for best outcome results using boolean search strings

[Krishna Murthy]

Dear Friends,

This is Krishna and i am into US Staffing for last 10 yrs, i am still beginner to know more search strings, Can any one help me out for best outcome results using Boolean search strings, Please send me attachments on pdf or doc to find resumes in monster, dice, CB and other social network sites.

Thank you