Perhaps you should try some spelling variations:
"coder coder model in propagation" » "coder coder model on propagation" (Expand search), "coder coder model and propagation" (Expand search), "coder coder model _ propagation" (Expand search), "coder decoder model in propagation" (Expand search), "code code model in propagation" (Expand search), "decoder codec model in propagation" (Expand search), "coder cover model in propagation" (Expand search), "coder copper model in propagation" (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder model in propagation\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder model in propagation ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder model in propagation") OR ("api python python python programming"))*.