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