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