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