Perhaps you should try some spelling variations:
"managing interest" » "managing internet", "managing internal", "managing inter"
"managing direct" » "managing director", "managing indirect", "managing directors"
"managing insect" » "managing inter", "managing object", "managing internet"

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 direct") OR ((("managing interest") OR ("managing insect"))))*.
• Removing quotes may allow a broader search: (( managing direct ) or ((( managing interest ) or ( managing insect ))))*.