Perhaps you should try some spelling variations:
"coder coder trace convex programming" » "coder coder trace cone programming" (Expand search), "coder coder trace computer programming" (Expand search), "coder coder space convex programming" (Expand search), "coder coder strict convex programming" (Expand search), "coder coder the convex programming" (Expand search), "coder decoder trace convex programming" (Expand search), "code code trace convex programming" (Expand search), "decoder codec trace convex programming" (Expand search), "coder code trace convex programming" (Expand search), "coder moser trace convex programming" (Expand search), "coder poder tracos convex 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.

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