Perhaps you should try some spelling variations:
"managing directory" » "managing director's", "managing inventory", "creating directory", "managing directy"
"managing directors" » "managing director's", "managing defects", "manager director", "managing directs"
"merging directory" » "working directory", "testing directory", "emerging directions", "merging directy"
"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 directory") OR ("merging directory"))) OR ("managing directors")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"managing director\") or (((((\"managing directory\") OR (\"merging directory\"))) or (\"managing directors\"))))".
• Removing quotes may allow a broader search: (( managing director ) or ((((( managing directory ) OR ( merging directory ))) or ( managing directors )))).
• Adding a wildcard symbol may retrieve word variants: (("managing director") or ((((("managing directory") OR ("merging directory"))) or ("managing directors"))))*.