Perhaps you should try some spelling variations:
"text oriented research : july 2013" » "text related research : july 2013", "text extended research : july 2013", "sex oriented research : july 2013", "part oriented research : july 2013", "self oriented research : july 2013"
"meet vaccine research : july 2008" » "meet medicine research : july 2008", "media vaccine research : july 2008", "ant vaccine research : july 2008", "mr vaccine research : july 2008", "meet vaccine research : july 2012", "meet vaccine research : july 2020", "meet vaccine research : july 2015"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("text oriented research : july 2013") or ("meet vaccine research : july 2008"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("text oriented research : july 2013") OR ("meet vaccine research : july 2008")).
• Removing quotes may allow a broader search: (( text oriented research : july 2013 ) or ( meet vaccine research : july 2008 )).
• Adding a wildcard symbol may retrieve word variants: (("text oriented research : july 2013") or ("meet vaccine research : july 2008"))*.