Perhaps you should try some spelling variations:
"coder code coverage retention function" » "coder code coverage detection function" (Expand search), "coder code coverage extension function" (Expand search), "coder code coverage prediction function" (Expand search), "coder code coverage reaction function" (Expand search), "coder code coverage selection function" (Expand search), "coder code coverage reaction functions" (Expand search), "coder care coverage retention function" (Expand search), "coder and coverage retention function" (Expand search), "coder the coverage retention function" (Expand search), "code code coverage retention function" (Expand search), "modern code coverage retention function" (Expand search), "color code coverage retention function" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (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: "((\"coder code coverage retention function\") OR (\"_ python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code coverage retention function ) OR ( _ python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code coverage retention function") OR ("_ python python python programming"))*.