Perhaps you should try some spelling variations:
"coder coding based convex programming" » "coder coding based cone programming" (Expand search), "coder coding based computer programming" (Expand search), "modern coding based convex programming" (Expand search), "color coding based convex programming" (Expand search), "odor coding based convex programming" (Expand search), "coder coating based convex programming" (Expand search), "coder modeling based convex programming" (Expand search), "coder reading based convex programming" (Expand search), "coder coding based context programming" (Expand search), "coder coding based contexts programming" (Expand search), "coder coding based content programming" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ 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 coding based convex programming\") OR (\"on python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding based convex programming ) OR ( on python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding based convex programming") OR ("on python python python programming"))*.