Perhaps you should try some spelling variations:
"program complementing" » "program commencing" (Expand Search), "program comprehension" (Expand Search)
"program complementinged" » "program commencinged" (Expand Search), "program comprehensioned" (Expand Search), "program complementslinked" (Expand Search), "program complementsingle" (Expand Search), "program complemented" (Expand Search)
"program implementing" » "from implementing" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"program implementing\") OR (\"program complementing\"))) OR (\"program complementinged\"))~".
• Removing quotes may allow a broader search: (((( program implementing ) OR ( program complementing ))) OR ( program complementinged ))~.
• Adding a wildcard symbol may retrieve word variants: (((("program implementing") OR ("program complementing"))) OR ("program complementinged"))*.