Perhaps you should try some spelling variations:
"coder coding efficient flow problems" » "coder coding efficiency flow problems" (Expand search), "coder using efficient flow problems" (Expand search), "coder crowding coefficient flow problems" (Expand search), "coder coding efficient low problems" (Expand search), "coder coding efficient from problems" (Expand search), "coder coding efficient flow problem" (Expand search), "modern coding efficient flow problems" (Expand search), "color coding efficient flow problems" (Expand search), "odor coding efficient flow problems" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coding efficient flow problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding efficient flow problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding efficient flow problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding efficient flow problems") OR ("api python python python programming"))*.