Perhaps you should try some spelling variations:
"coder decoder lake routing problem" » "encoder decoder lake routing problem" (Expand search), "coder meander lake routing problem" (Expand search), "coder decoder line routing problem" (Expand search), "coder decoder care routing problem" (Expand search), "coder decoder are 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), "manim 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 decoder lake routing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder lake routing problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder decoder lake routing problem ) OR ( api python python python programming ))*.