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 (\"program complemented\"))) OR (\"program complementing\"))~".
• Removing quotes may allow a broader search: (((( program implement ) OR ( program complemented ))) OR ( program complementing ))~.
• Adding a wildcard symbol may retrieve word variants: (((("program implement") OR ("program complemented"))) OR ("program complementing"))*.