Perhaps you should try some spelling variations:
"coder coder distributed optimization problem" » "coder coder distributed simulation problem" (Expand search), "coder coder discrete optimization problem" (Expand search), "coder coder unrestricted optimization problem" (Expand search), "coder coder distributed optimization problems" (Expand search), "coder model distributed optimization problem" (Expand search), "coder over distributed optimization problem" (Expand search), "coder order distributed optimization problem" (Expand search), "coder decoder distributed optimization problem" (Expand search), "code code distributed optimization problem" (Expand search), "decoder codec distributed optimization 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder distributed optimization problem") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder distributed optimization problem\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder distributed optimization problem ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder distributed optimization problem") OR ("_ python python python programming"))*.