Perhaps you should try some spelling variations:
"multi oriented research : july 2007" » "multi related research : july 2007", "multi extended research : july 2007", "results oriented research : july 2007", "quality oriented research : july 2007", "multi oriented research : july 2008", "multi oriented research : july 2012", "multi oriented research : july 2020"
"multi option research : july 2013" » "multi opinion research : july 2013", "multi action research : july 2013", "multi optics research : july 2013", "multi location research : july 2013", "multi population research : july 2013", "multi ratios research : july 2013"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"multi oriented research : july 2007\") OR (\"multi option research : july 2013\"))~".
• Removing quotes may allow a broader search: (( multi oriented research : july 2007 ) OR ( multi option research : july 2013 ))~.
• Adding a wildcard symbol may retrieve word variants: (("multi oriented research : july 2007") OR ("multi option research : july 2013"))*.