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