Perhaps you should try some spelling variations:
"coder code coverage effective action" » "coder code coverage effect action" (Expand search), "coder code covariant effective action" (Expand search), "coder code coverage affects action" (Expand search), "coder care coverage effective action" (Expand search), "coder and coverage effective action" (Expand search), "coder the coverage effective action" (Expand search), "code code coverage effective action" (Expand search), "modern code coverage effective action" (Expand search), "color code coverage effective action" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python 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 effective action\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code coverage effective action ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code coverage effective action") OR ("api python python python programming"))*.