Perhaps you should try some spelling variations:
"coder collocation path routing problem" » "power allocation path routing problem" (Expand search), "des collocations path routing problem" (Expand search), "and collocation path routing problem" (Expand search), "coder collocation with routing problem" (Expand search), "coder collocations with routing problem" (Expand search), "coder collocation and routing problem" (Expand search), "coder collocation arc routing problem" (Expand search), "coder collocation with routine problem" (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 collocation path routing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder collocation path routing problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder collocation path routing problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder collocation path routing problem") OR ("api python python python programming"))*.