Perhaps you should try some spelling variations:
"coder coder _ collaborative problem" » "coder coder _ collaborative process" (Expand search), "coder coder _ collaborative project" (Expand search), "coder coder _ collaborative robots" (Expand search), "coder decoder _ collaborative problem" (Expand search), "code code _ collaborative problem" (Expand search), "decoder codec _ collaborative problem" (Expand search)
"via python python python programming" » "via pythons python python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons 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: (("coder coder _ collaborative problem") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder _ collaborative problem\") OR (\"via python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder _ collaborative problem ) OR ( via python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ collaborative problem") OR ("via python python python programming"))*.