Perhaps you should try some spelling variations:
"coder allocation using routing problem" » "power allocation using routing problem" (Expand search), "order allocation using routing problem" (Expand search), "over allocation using routing problem" (Expand search), "coder application using routing problem" (Expand search), "coder allocation in routing problem" (Expand search), "coder allocation and routing problem" (Expand search), "coder allocation using routine problem" (Expand search), "coder allocation nursing routing problem" (Expand search), "coder allocation using rotating 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder allocation using routing problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder allocation using routing problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder allocation using routing problem") OR ("api python python python programming"))*.