Perhaps you should try some spelling variations:
"teaching computation using string theory" » "teaching computational using string theory" (Expand search), "teaching competitions using string theory" (Expand search), "teaching compensation using string theory" (Expand search), "teaching computations using string theory" (Expand search), "teaching computation in string theory" (Expand search), "teaching composition using string theory" (Expand search), "teaching computation using nursing theory" (Expand search), "teaching computation using strong theory" (Expand search), "teaching computation using spring theory" (Expand search), "teaching computation using strains theory" (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching computation using string theory\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( teaching computation using string theory ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("teaching computation using string theory") OR ("using coding python python programming"))*.