Perhaps you should try some spelling variations:
"convex objective _ algorithms process" » "context objectives _ algorithms process" (Expand search), "coffee objective _ algorithms process" (Expand search), "one objective _ algorithms process" (Expand search)
"api pitons python python programming" » "api pitons pythons python programming" (Expand search), "api pitons piton python programming" (Expand search), "api pitons pytm python programming" (Expand search), "api citons python python programming" (Expand search), "api pitoni python python programming" (Expand search), "api pitoes 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: (("convex objective _ algorithms process") OR ("api pitons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"convex objective _ algorithms process\") OR (\"api pitons python python programming\"))".
• Removing quotes may allow a broader search: (( convex objective _ algorithms process ) OR ( api pitons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("convex objective _ algorithms process") OR ("api pitons python python programming"))*.