Perhaps you should try some spelling variations:
"coder coder in subgroup problem" » "coder coder in subgraph problem" (Expand search), "coder decoder in subgroup problem" (Expand search), "code code in subgroup problem" (Expand search), "decoder codec in subgroup problem" (Expand search), "coder coder in subgroups problem" (Expand search), "coder coder _ subgroup problem" (Expand search), "coder coder of subgroup problem" (Expand search), "coder code in subgroup problem" (Expand search), "coder codes in subgroup problem" (Expand search), "coder poder in 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder in subgroup problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder in subgroup problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder in subgroup problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder in subgroup problem") OR ("api python python python programming"))*.