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