Perhaps you should try some spelling variations:
"coder coder and subgroup problem" » "coder coder and subgraph problem" (Expand search), "coder coder and subgroups problem" (Expand search), "coder coder aab subgroup problem" (Expand search), "coder coder in subgroup problem" (Expand search), "coder decoder and subgroup problem" (Expand search), "code code and subgroup problem" (Expand search), "decoder codec and subgroup problem" (Expand search), "coder code and subgroup problem" (Expand search), "coder codes and subgroup problem" (Expand search), "coder poder and 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 and subgroup problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and subgroup problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder and subgroup problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder and subgroup problem") OR ("api python python python programming"))*.