Perhaps you should try some spelling variations:
"program implemented" » "program improvements" (Expand Search), "program improvementsed" (Expand Search)
"program implement" » "program improvements" (Expand Search)
"program implementingingededingedinged" » "program improvementsingingededingedinged" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("program implement") OR ((("program implemented") OR ("program implementingingededingedinged"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"program implement\") OR (((\"program implemented\") OR (\"program implementingingededingedinged\"))))".
• Removing quotes may allow a broader search: (( program implement ) OR ((( program implemented ) OR ( program implementingingededingedinged )))).
• Adding a wildcard symbol may retrieve word variants: (("program implement") OR ((("program implemented") OR ("program implementingingededingedinged"))))*.