Perhaps you should try some spelling variations:
"coder multiobjective integer example program" » "coder multiobjective linear example program" (Expand search), "cost multiobjective integer example program" (Expand search), "novel multiobjective integer example program" (Expand search), "modelo multiobjectivo integer example program" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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 multiobjective integer example program") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder multiobjective integer example program\") OR (\"using coding python python programming\"))*".
• Removing quotes may allow a broader search: (( coder multiobjective integer example program ) OR ( using coding python python programming ))*.