Perhaps you should try some spelling variations:
"multi plants research : july 2009" » "multi class research : july 2009", "multi planning research : july 2009", "multi changes research : july 2009", "multi plant research : july 2009", "multi party research : july 2009", "multi player research : july 2009", "multi plants research : july 2008", "multi plants research : july 2007", "multi plants research : july 2019"
"mali climate research : july 2009" » "bali climate research : july 2009", "daily climate research : july 2009", "early climate research : july 2009", "mali climate research : july 2008", "mali climate research : july 2007", "mali climate research : july 2019"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("multi plants research : july 2009") or ("mali climate research : july 2009"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("multi plants research : july 2009") OR ("mali climate research : july 2009")).
• Removing quotes may allow a broader search: (( multi plants research : july 2009 ) or ( mali climate research : july 2009 )).
• Adding a wildcard symbol may retrieve word variants: (("multi plants research : july 2009") or ("mali climate research : july 2009"))*.