Perhaps you should try some spelling variations:
"teaching computational cost java programing" » "using computational cost java programing" (Expand search), "teaching educational cost java programing" (Expand search), "applying computational cost java programing" (Expand search), "teaching computational and java programing" (Expand search), "teaching computational design java programing" (Expand search), "teaching computational vision java programing" (Expand search), "teaching computational cost java programming" (Expand search), "teaching computational cost java programs" (Expand search), "teaching computational cost meta programming" (Expand search), "teaching computational costa javan programing" (Expand search), "teaching computational east java programing" (Expand search), "teaching computational west java programing" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("teaching computational cost java programing") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching computational cost java programing\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( teaching computational cost java programing ) OR ( using python python python programming ))*.