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