Perhaps you should try some spelling variations:
"program implement" » "program implemented" (Expand Search), "program implementing" (Expand Search)
"trial implementeding" » "trial implementededing" (Expand Search), "trial implementingeding" (Expand Search), "trials implementeding" (Expand Search), "trial implementing" (Expand Search), "trial implemented" (Expand Search)
"program implementinginged" » "program implementedinginged" (Expand Search), "program implementinginginged" (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 implement\") OR (\"trial implementeding\"))) OR (\"program implementinginged\"))~".
• Removing quotes may allow a broader search: (((( program implement ) OR ( trial implementeding ))) OR ( program implementinginged ))~.
• Adding a wildcard symbol may retrieve word variants: (((("program implement") OR ("trial implementeding"))) OR ("program implementinginged"))*.