Perhaps you should try some spelling variations:
"teaching formulation using computer program" » "teaching formation using computer program" (Expand search), "teaching simulation using computer program" (Expand search), "teaching modulation using computer program" (Expand search), "teaching formulations using computer program" (Expand search)
"using codigo python python programming" » "using codigo pythons python programming" (Expand search), "using codigo piton python programming" (Expand search), "using codigo pitons python programming" (Expand search), "using indigo python python programming" (Expand search), "using coding python python programming" (Expand search), "using codium 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 formulation using computer program") OR ("using codigo python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching formulation using computer program\") OR (\"using codigo python python programming\"))".
• Removing quotes may allow a broader search: (( teaching formulation using computer program ) OR ( using codigo python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("teaching formulation using computer program") OR ("using codigo python python programming"))*.