Perhaps you should try some spelling variations:
"coder computation _ computation problem" » "coder computation _ competition problem" (Expand search), "coder computation _ completion problem" (Expand search), "coder computation _ communication problem" (Expand search), "modern computation _ computation problem" (Expand search), "core computation _ computation problem" (Expand search), "color computation _ computation problem" (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 computation _ computation problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder computation _ computation problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder computation _ computation problem") OR ("api python python python programming"))*.