Perhaps you should try some spelling variations:
"coder on integer programming problems" » "coder on linear programming problems" (Expand search), "coder an integer programming problems" (Expand search), "coder of integer programming problems" (Expand search), "coder in integer programming problems" (Expand search), "code on integer programming problems" (Expand search), "codes on integer programming problems" (Expand search), "powder on integer programming problems" (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 on integer programming problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder on integer programming problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder on integer programming problems") OR ("api python python python programming"))*.