Perhaps you should try some spelling variations:
"coder implementation in routing problem" » "code implementation in routing problem" (Expand search), "decoder implementation in routing problem" (Expand search), "model implementation in routing problem" (Expand search), "coder implementation and routing problem" (Expand search), "coder implementation of routing problem" (Expand search), "coder implementation in routine problem" (Expand search), "coder implementation in rooting problem" (Expand search), "coder implementation on routing problem" (Expand search)
"python coding api python programming" » "action coding api python programming" (Expand search), "python code api python programming" (Expand search), "python coding anti python programming" (Expand search), "python coding and python programming" (Expand search), "python coding an python programming" (Expand search), "python coding rpa python programming" (Expand search), "python coding manim 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 implementation in routing problem") OR ("python coding api python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder implementation in routing problem\") OR (\"python coding api python programming\"))".
• Removing quotes may allow a broader search: (( coder implementation in routing problem ) OR ( python coding api python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder implementation in routing problem") OR ("python coding api python programming"))*.