Google and Google Scholar

Results are ranked by: 

• Number of times they've been cited 
• How recently they've been cited
• Who the authors are
• Where it was published

Specify what to search

allintitle:  cancer alcohol risk    {retrieves titles with the words in any order}

"adult leukemia"  {phrase search}

"adult AROUND(3) leukemia" phrase with up to three words in the middle: eg: adult acute lymphoblastic leukemia

author:"James P Allison"

glioma OR glioblastoma 

diabetes -juvenile