Perhaps you should try some spelling variations:
"teaching computation in computer program" » "teaching computational in computer program" (Expand search), "teaching competitions in computer program" (Expand search), "teaching compensation in computer program" (Expand search), "teaching computation and computer program" (Expand search), "teaching computation of computer program" (Expand search), "teaching imputation in computer program" (Expand search), "teaching computation _ computer program" (Expand search)
"using mobile in python programming" » "using mobile and python programming" (Expand search), "using mobile _ python programming" (Expand search), "using mobile ad 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 computation in computer program") OR ("using mobile in python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching computation in computer program\") OR (\"using mobile in python programming\"))".
• Removing quotes may allow a broader search: (( teaching computation in computer program ) OR ( using mobile in python programming )).
• Adding a wildcard symbol may retrieve word variants: (("teaching computation in computer program") OR ("using mobile in python programming"))*.