Perhaps you should try some spelling variations:
"coder and coverage spaces doi" » "coder and coverage paces doi" (Expand search), "coder and covering spaces doi" (Expand search), "coder and coverage spark doi" (Expand search), "coder and cover spaces doi" (Expand search), "coder and coverage space doi" (Expand search), "code and coverage spaces doi" (Expand search), "codes and coverage spaces doi" (Expand search), "poder and coverage spaces doi" (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 spaces doi\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder and coverage spaces doi ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder and coverage spaces doi") OR ("api python python python programming"))*.