Perhaps you should try some spelling variations:
"coder coder tree boosting problems" » "coder coder tree routing problems" (Expand search), "coder coder tree nesting problems" (Expand search), "coder coder tree counting problems" (Expand search), "coder decoder tree boosting problems" (Expand search), "code code tree boosting problems" (Expand search), "decoder codec tree boosting problems" (Expand search), "coder modern tree boosting problems" (Expand search), "coder under tree boosting problems" (Expand search), "coder poder tres boosting problems" (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 tree boosting problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder tree boosting problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder tree boosting problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder tree boosting problems") OR ("api python python python programming"))*.