Perhaps you should try some spelling variations:
"coder code coverage density based" » "coder code forage density based" (Expand search), "coder code coverage equity based" (Expand search), "coder code cover density based" (Expand search), "coder care coverage density based" (Expand search), "coder and coverage density based" (Expand search), "coder the coverage density based" (Expand search), "code code coverage density based" (Expand search), "modern code coverage density based" (Expand search), "color code coverage density based" (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 density based\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code coverage density based ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code coverage density based") OR ("api python python python programming"))*.