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