Perhaps you should try some spelling variations:
"coder coder knowledge convex programming" » "coder coder knowledge cone programming" (Expand search), "coder coder knowledge computer programming" (Expand search), "coder coder knowledge contexts programming" (Expand search), "coder coder knowledge conveyed programming" (Expand search), "coder coder knowledge concept programming" (Expand search), "coder code knowledge convex programming" (Expand search), "coder modern knowledge convex programming" (Expand search), "coder power knowledge convex programming" (Expand search), "coder decoder knowledge convex programming" (Expand search), "code code knowledge convex programming" (Expand search), "decoder codec knowledge convex 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 coder knowledge convex programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder knowledge convex programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder knowledge convex programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder knowledge convex programming") OR ("_ python python python programming"))*.