Perhaps you should try some spelling variations:
"managing inventory" » "management inventory", "taking inventory"
"managing directors" » "managing director's", "managing defects", "managing distractions", "managing directs"
"merging directory" » "managing directory", "working directory", "testing directory", "merging directy"
"managing directs" » "managing defects", "managing director's", "managing directory"
"managing director" » "managing direct"

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 director") OR ((((((("managing inventory") OR ("managed inventory"))) OR ("merging directory"))) OR ((("managing directors") OR ("managing directs")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"managing director\") or (((((((\"managing inventory\") OR (\"managed inventory\"))) or (\"merging directory\"))) or (((\"managing directors\") or (\"managing directs\"))))))".
• Removing quotes may allow a broader search: (( managing director ) or ((((((( managing inventory ) OR ( managed inventory ))) or ( merging directory ))) or ((( managing directors ) or ( managing directs )))))).
• Adding a wildcard symbol may retrieve word variants: (("managing director") or ((((((("managing inventory") OR ("managed inventory"))) or ("merging directory"))) or ((("managing directors") or ("managing directs"))))))*.