Perhaps you should try some spelling variations:
"coder under binary subgroup problem" » "coder under binary subgraph problem" (Expand search), "coder gender binary subgroup problem" (Expand search), "coder under boundary subgroup problem" (Expand search), "coder under dietary subgroup problem" (Expand search), "code under binary subgroup problem" (Expand search), "cover under binary subgroup problem" (Expand search), "clover under binary subgroup 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 under binary subgroup problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder under binary subgroup problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder under binary subgroup problem") OR ("api python python python programming"))*.