Perhaps you should try some spelling variations:
"coder and coverage basis functions" » "coder and coverage based functions" (Expand search), "coder and coverage bags functions" (Expand search), "coder and coverage brazil functions" (Expand search), "coder and cover basis functions" (Expand search), "code and coverage basis functions" (Expand search), "codes and coverage basis functions" (Expand search), "poder and coverage basis functions" (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 and coverage basis functions\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder and coverage basis functions ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder and coverage basis functions") OR ("api python python python programming"))*.