Perhaps you should try some spelling variations:
"coder coder reduction routing problem" » "coder coder production routing problem" (Expand search), "coder coder production routine problem" (Expand search), "coder coder roduction routines problem" (Expand search), "coder copper reduction routing problem" (Expand search), "coder model reduction routing problem" (Expand search), "coder order reduction routing problem" (Expand search), "coder decoder reduction routing problem" (Expand search), "code code reduction routing problem" (Expand search), "decoder codec reduction routing 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 coder reduction routing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder reduction routing problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder reduction routing problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder reduction routing problem") OR ("api python python python programming"))*.