Perhaps you should try some spelling variations:
"coder coder pattern optimization problem" » "coder coder modern optimization problem" (Expand search), "coder coder path optimization problem" (Expand search), "coder coder filter optimization problem" (Expand search), "coder coder pattern optimization problems" (Expand search), "coder cover pattern optimization problem" (Expand search), "coder cover patterns optimization problem" (Expand search), "coder powder pattern optimization problem" (Expand search), "coder decoder pattern optimization problem" (Expand search), "code code pattern optimization problem" (Expand search), "decoder codec pattern 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 pattern optimization problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder pattern optimization problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder pattern optimization problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder pattern optimization problem") OR ("api python python python programming"))*.