Perhaps you should try some spelling variations:
"coder precoder scheduling conic programming" » "coder order scheduling conic programming" (Expand search), "coder power scheduling conic programming" (Expand search), "coder processor scheduling conic programming" (Expand search), "coder precoder scheduling logic programming" (Expand search), "coder precoder scheduling cone programming" (Expand search), "coder precoder scheduling convex programming" (Expand search), "coder precoder scheduling on programming" (Expand search), "coder precoder scheduling clinical programming" (Expand search), "coder precoder scheduling control programming" (Expand search), "coder decoder scheduling conic programming" (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 precoder scheduling conic programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder scheduling conic programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder scheduling conic programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder scheduling conic programming") OR ("_ python python python programming"))*.