Perhaps you should try some spelling variations:
"coder coder role allocation problem" » "coder coder role location problem" (Expand search), "coder coder pole allocation problem" (Expand search), "coder coder route allocation problem" (Expand search), "coder coder polle allocation problem" (Expand search), "coder decoder role allocation problem" (Expand search), "code code role allocation problem" (Expand search), "decoder codec role allocation 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder role allocation problem\") OR (\"via python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder role allocation problem ) OR ( via python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder role allocation problem") OR ("via python python python programming"))*.