Perhaps you should try some spelling variations:
"coder precoder of subgraph problem" » "coder decoder of subgraph problem" (Expand search), "coder recorder of subgraph problem" (Expand search), "coder recover of subgraph problem" (Expand search), "coder precoder _ subgraph problem" (Expand search), "coder precoder of subgrade problem" (Expand search), "coder precoder of subgroups 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), "manim 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 precoder of subgraph problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder of subgraph problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder of subgraph problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder of subgraph problem") OR ("api python python python programming"))*.