Perhaps you should try some spelling variations:
"teaching optimization and java programming" » "leaching optimization and java programming" (Expand search), "searching optimization and java programming" (Expand search), "etching optimization and java programming" (Expand search), "teaching optimization and and programming" (Expand search), "teaching optimization and based programming" (Expand search), "teaching optimization and goal programming" (Expand search), "teaching optimization and japan programming" (Expand search), "teaching optimization in java programming" (Expand search), "teaching optimization and jail programming" (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: (("teaching optimization and java programming") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching optimization and java programming\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( teaching optimization and java programming ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("teaching optimization and java programming") OR ("using coding python python programming"))*.