Perhaps you should try some spelling variations:
"coder coder gram scale problem" » "coder coder gram scale problems" (Expand search), "coder coder gram state problem" (Expand search), "coder coder gram sample problem" (Expand search), "coder decoder gram scale problem" (Expand search), "code code gram scale problem" (Expand search), "decoder codec gram scale problem" (Expand search), "coder coder gray scale problem" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons 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 gram scale problem\") OR (\"_ python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder gram scale problem ) OR ( _ python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder gram scale problem") OR ("_ python python python programming"))*.