Perhaps you should try some spelling variations:
"teaching computational using computer program" » "using computational using computer program" (Expand search), "teaching educational using computer program" (Expand search), "applying computational using computer program" (Expand search), "teaching computation using computer program" (Expand search), "teaching computations using computer program" (Expand search), "teaching computacional usinas computer program" (Expand search)
"using mobile pym python programming" » "using mobile pre python programming" (Expand search), "using mobile bim python programming" (Expand search), "using mobile pytm 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 computational using computer program") OR ("using mobile pym python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching computational using computer program\") OR (\"using mobile pym python programming\"))".
• Removing quotes may allow a broader search: (( teaching computational using computer program ) OR ( using mobile pym python programming )).
• Adding a wildcard symbol may retrieve word variants: (("teaching computational using computer program") OR ("using mobile pym python programming"))*.