Perhaps you should try some spelling variations:
"coder coder water routing problem" » "coder coder water rafting problem" (Expand search), "coder coder water polluting problem" (Expand search), "coder coder water reporting problem" (Expand search), "coder decoder water routing problem" (Expand search), "code code water routing problem" (Expand search), "decoder codec water routing problem" (Expand search), "coder cover water routing problem" (Expand search), "coder powder water routing problem" (Expand search), "coder under water 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 water routing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder water routing problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder water routing problem ) OR ( api python python python programming ))*.