Perhaps you should try some spelling variations:
"multi location research : july 2008" » "multi locations research : july 2008", "multi education research : july 2008", "multi action research : july 2008", "multi option research : july 2008", "multiple locations research : july 2008", "multiplication _ research : july 2008", "multi location research : july 2013", "multi location research : july 2012", "multi location research : july 2020"
"anti vaccine research : july 2008" » "anti medicine research : july 2008", "ant vaccine research : july 2008", "active vaccine research : july 2008", "aids vaccine research : july 2008", "anti vaccine research : july 2013", "anti vaccine research : july 2012", "anti vaccine research : july 2020"

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

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