Perhaps you should try some spelling variations:
"coder in integer programming problems" » "coder in linear programming problems" (Expand search), "coder an integer programming problems" (Expand search), "coder on integer programming problems" (Expand search), "coder and integer programming problems" (Expand search), "code in integer programming problems" (Expand search), "codes in integer programming problems" (Expand search), "poder in 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder in integer programming problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder in integer programming problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder in integer programming problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder in integer programming problems") OR ("api python python python programming"))*.