Perhaps you should try some spelling variations:
"order conic programming approach problem" » "order logic programming approach problem" (Expand search), "order cone programming approach problem" (Expand search), "order convex programming approach problem" (Expand search), "order conic programming approaches problems" (Expand search), "order conic programming approaching problems" (Expand search), "order conic programming approach produces" (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: (("order conic programming approach problem") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"order conic programming approach problem\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( order conic programming approach problem ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("order conic programming approach problem") OR ("_ python python python programming"))*.