Perhaps you should try some spelling variations:
"coder or parallel complexity problem" » "coder or parallel compression problem" (Expand search), "coder or paradigms complexity problem" (Expand search), "coder or parallel complex problem" (Expand search), "coder or parallel completion problem" (Expand search), "coder or parallel convexity problem" (Expand search), "coder of parallel complexity problem" (Expand search), "coder on parallel complexity problem" (Expand search), "coder _ parallel complexity problem" (Expand search), "code or parallel complexity problem" (Expand search), "under or parallel complexity problem" (Expand search), "order or parallel complexity 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 or parallel complexity problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder or parallel complexity problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder or parallel complexity problem") OR ("api python python python programming"))*.