Perhaps you should try some spelling variations:
"coder coder model using propositional" » "coder coder model among propositional" (Expand search), "coder coder model using positional" (Expand search), "coder coder model using compositional" (Expand search), "coder decoder model using propositional" (Expand search), "code code model using propositional" (Expand search), "decoder codec model using propositional" (Expand search), "coder cover model using propositional" (Expand search), "coder copper model using propositional" (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 model using propositional") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder model using propositional\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder model using propositional ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder model using propositional") OR ("api python python python programming"))*.