Perhaps you should try some spelling variations:
"coder coder propagation in problem" » "coder mode propagation in problem" (Expand search), "coder model propagation in problem" (Expand search), "coder modes propagation in problem" (Expand search), "coder coder propagation of problem" (Expand search), "coder decoder propagation in problem" (Expand search), "code code propagation in problem" (Expand search), "decoder codec propagation in 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 propagation in problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder propagation in problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder propagation in problem ) OR ( api python python python programming ))*.