Perhaps you should try some spelling variations:
"testing functions using teaching process" » "testing functional using teaching process" (Expand search), "iterating functions using teaching process" (Expand search), "teaching functions using teaching process" (Expand search), "testing functions using teaching profession" (Expand search), "testing function using teaching process" (Expand search), "testing reactions using teaching process" (Expand search), "testing functions nursing teaching process" (Expand search), "testing functions during teaching process" (Expand search), "testing functions song teaching process" (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: "((\"testing functions using teaching process\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( testing functions using teaching process ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("testing functions using teaching process") OR ("using python python python programming"))*.