Perhaps you should try some spelling variations:
"teaching computation in pulling program" » "teaching computational in pulling program" (Expand search), "teaching competitions in pulling program" (Expand search), "teaching compensation in pulling program" (Expand search), "teaching computation in culling program" (Expand search), "teaching computation in spelling program" (Expand search), "teaching computation in spelling programs" (Expand search), "teaching computation and pulling program" (Expand search), "teaching computation of pulling program" (Expand search), "teaching imputation in pulling program" (Expand search), "teaching computation in pulping program" (Expand search), "teaching computation oil pulling program" (Expand search)
"using modeling vpython python programming" » "using modeling method python programming" (Expand search), "using model vpython python programming" (Expand search), "using modern vpython python programming" (Expand search), "using models vpython python programming" (Expand search), "using modeling python python programming" (Expand search), "using modeling pythons python programming" (Expand search), "using modeling piton 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 pulling program") OR ("using modeling vpython python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching computation in pulling program\") OR (\"using modeling vpython python programming\"))".
• Removing quotes may allow a broader search: (( teaching computation in pulling program ) OR ( using modeling vpython python programming )).
• Adding a wildcard symbol may retrieve word variants: (("teaching computation in pulling program") OR ("using modeling vpython python programming"))*.