Perhaps you should try some spelling variations:
"coder coder solving optimization problem" » "coder coder rolling optimization problem" (Expand search), "coder coder sourcing optimization problem" (Expand search), "coder coder routing optimization problem" (Expand search), "coder coder solving optimization problems" (Expand search), "coder case solving optimization problem" (Expand search), "coder roses solving optimization problem" (Expand search), "coder decoder solving optimization problem" (Expand search), "code code solving optimization problem" (Expand search), "decoder codec solving 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)

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 solving optimization problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder solving optimization problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder solving optimization problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder solving optimization problem") OR ("api python python python programming"))*.