Perhaps you should try some spelling variations:
"coder coder propagation on programming" » "coder mode propagation on programming" (Expand search), "coder model propagation on programming" (Expand search), "coder modes propagation on programming" (Expand search), "coder coder propagation of programming" (Expand search), "coder coder propagation in programming" (Expand search), "coder coder propagation and programming" (Expand search), "coder coder propagation cone programming" (Expand search), "coder decoder propagation on programming" (Expand search), "code code propagation on programming" (Expand search), "decoder codec propagation on programming" (Expand search)
"api python python python programming" » "api python python pythin programming" (Expand search), "api python python pythcone programming" (Expand search), "api python python pythand programming" (Expand search), "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons 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 on programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder propagation on programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder propagation on programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder propagation on programming") OR ("api python python python programming"))*.