Perhaps you should try some spelling variations:
"trial implementing" » "trials implementing" (Expand Search)
"program complemented" » "program implemented" (Expand Search), "program complement" (Expand Search), "program complementary" (Expand Search)
"program complementededinged" » "program implementededinged" (Expand Search), "program complementedinged" (Expand Search), "program complementaryedinged" (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: "((((\"trial implementing\") OR (\"program complemented\"))) OR (\"program complementededinged\"))~".
• Removing quotes may allow a broader search: (((( trial implementing ) OR ( program complemented ))) OR ( program complementededinged ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trial implementing") OR ("program complemented"))) OR ("program complementededinged"))*.