Perhaps you should try some spelling variations:
"coder coder strength optimization problems" » "coder coder strength estimation problems" (Expand search), "coder coder search optimization problems" (Expand search), "coder coder through optimization problems" (Expand search), "coder power strength optimization problems" (Expand search), "coder coke strength optimization problems" (Expand search), "coder node strength optimization problems" (Expand search), "coder decoder strength optimization problems" (Expand search), "code code strength optimization problems" (Expand search), "decoder codec strength optimization 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 strength optimization problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder strength optimization problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder strength optimization problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder strength optimization problems") OR ("api python python python programming"))*.