Perhaps you should try some spelling variations:
"managing national research : july 2012" » "managing subnational research : july 2012", "managing natural research : july 2012", "changing national research : july 2012", "managing educational research : july 2012", "managing national research : july 2013"
"mali options research : june 2011" » "mali actions research : june 2011", "mali optics research : june 2011", "mali operations research : june 2011", "scale options research : june 2011", "i options research : june 2011", "iii options research : june 2011", "mali options research : june 2013", "mali options research : june 2014", "mali options research : june 2010"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("managing national research : july 2012") OR ("mali options research : june 2011"))~.
• Removing quotes may allow a broader search: (( managing national research : july 2012 ) or ( mali options research : june 2011 ))~.
• Adding a wildcard symbol may retrieve word variants: (("managing national research : july 2012") or ("mali options research : june 2011"))*.