Perhaps you should try some spelling variations:
"coder coder _ counting problem" » "coder coder _ counting problems" (Expand search), "coder coder _ routing problem" (Expand search), "coder coder _ cutting problem" (Expand search), "coder decoder _ counting problem" (Expand search), "code code _ counting problem" (Expand search), "decoder codec _ counting 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 coder _ counting problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder _ counting problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ counting problem") OR ("api python python python programming"))*.