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