Perhaps you should try some spelling variations:
"coder coding some optimization problem" » "coder coding some optimization problems" (Expand search), "coder coding spme optimization problem" (Expand search), "coder coding stope optimization problem" (Expand search), "coder coding time optimization problem" (Expand search), "modern coding some optimization problem" (Expand search), "color coding some optimization problem" (Expand search), "odor coding some optimization problem" (Expand search), "coder coding mode optimization problem" (Expand search), "coder adding some 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 coding some optimization problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding some optimization problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding some optimization problem") OR ("api python python python programming"))*.