Perhaps you should try some spelling variations:
"coder coder convex functions problems" » "coder coder convex functional problems" (Expand search), "coder coder convex fractional problems" (Expand search), "coder coder convex conditions problems" (Expand search), "coder closed convex functions problems" (Expand search), "coder or convex functions problems" (Expand search), "coder some convex functions problems" (Expand search), "coder decoder convex functions problems" (Expand search), "code code convex functions problems" (Expand search), "decoder codec convex functions problems" (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), "rpa python python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder convex functions problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder convex functions problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder convex functions problems") OR ("api python python python programming"))*.