Perhaps you should try some spelling variations:
"coder coder database optimization problem" » "coder coder data optimization problem" (Expand search), "coder coder based optimization problem" (Expand search), "coder coder database application problem" (Expand search), "coder coder database optimization problems" (Expand search), "coder model database optimization problem" (Expand search), "coder cor database optimization problem" (Expand search), "coder cancer database optimization problem" (Expand search), "coder decoder database optimization problem" (Expand search), "code code database optimization problem" (Expand search), "decoder codec database 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.

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