Perhaps you should try some spelling variations:
"coder _ multiobjective integer program" » "coder _ multiobjective linear program" (Expand search), "coder _ multiobjective integer programs" (Expand search), "coder _ multiobjective integra program" (Expand search), "coder _ multiobjective integer programing" (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 _ multiobjective integer program\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder _ multiobjective integer program ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder _ multiobjective integer program") OR ("api python python python programming"))*.