Perhaps you should try some spelling variations:
"coder coder reverse vending problem" » "coder coder reverse planning problem" (Expand search), "coder coder reverse piercing problem" (Expand search), "coder coder reverse bending problem" (Expand search), "coder coder reverse blending problem" (Expand search), "coder coder reverse bending problems" (Expand search), "coder border reverse vending problem" (Expand search), "coder mode reverse vending problem" (Expand search), "coder model reverse vending problem" (Expand search), "coder decoder reverse vending problem" (Expand search), "code code reverse vending problem" (Expand search), "decoder codec reverse vending 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 reverse vending problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder reverse vending problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder reverse vending problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder reverse vending problem") OR ("api python python python programming"))*.