Perhaps you should try some spelling variations:
"teaching function using branch program" » "teaching functions using branch program" (Expand search), "teaching fractions using branch program" (Expand search), "teaching action using branch program" (Expand search), "teaching function during branch program" (Expand search), "teaching reaction using branch program" (Expand search), "teaching function using branca programa" (Expand search), "teaching function using brazil program" (Expand search), "teaching function using brasil program" (Expand search), "teaching function using batch program" (Expand search), "teaching function using brain program" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python 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 function using branch program\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( teaching function using branch program ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("teaching function using branch program") OR ("using python python python programming"))*.