Perhaps you should try some spelling variations:
"coder propagation modelling coding problem" » "coder propagation modeling coding problem" (Expand search), "coder propagation model coding problem" (Expand search), "coder propagation models coding problem" (Expand search), "mode propagation modelling coding problem" (Expand search), "model propagation modelling coding problem" (Expand search), "modes propagation modelling coding problem" (Expand search), "coder propagation modelling docking problem" (Expand search), "coder propagation modelling using problem" (Expand search), "coder propagation modelling code problem" (Expand search), "coder propagation modelling coding problems" (Expand search), "coder propagation modelling coping problem" (Expand search), "coder propagation modelling loading 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 propagation modelling coding problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder propagation modelling coding problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder propagation modelling coding problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder propagation modelling coding problem") OR ("api python python python programming"))*.