Perhaps you should try some spelling variations:
"coder detection using routing problem" » "code detection using routing problem" (Expand search), "border detection using routing problem" (Expand search), "corner detection using routing problem" (Expand search), "coder detection using routine problem" (Expand search), "coder detection nursing routing problem" (Expand search), "coder detection 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 detection using routing problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder detection using routing problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder detection using routing problem") OR ("api python python python programming"))*.