Perhaps you should try some spelling variations:
"learning contributions using java programing" » "training contributions using java programing" (Expand search), "teaching contributions using java programing" (Expand search), "nursing contributions using java programing" (Expand search), "learning contributions during java programing" (Expand search), "learning contributions in java programing" (Expand search), "learning distributions using java programing" (Expand search), "learning contributions using java programming" (Expand search), "learning contributions using java programs" (Expand search), "learning contributions using meta programming" (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.

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