Perhaps you should try some spelling variations:
"coder coder route allocation problem" » "coder coder route location problem" (Expand search), "coder coder counter allocation problem" (Expand search), "coder coder cost allocation problem" (Expand search), "coder coder pole allocation problem" (Expand search), "coder decoder route allocation problem" (Expand search), "code code route allocation problem" (Expand search), "decoder codec route allocation problem" (Expand search), "coder border router allocation problem" (Expand search), "coder coffee route 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 route allocation problem\") OR (\"via python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder route allocation problem ) OR ( via python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder route allocation problem") OR ("via python python python programming"))*.