Perhaps you should try some spelling variations:
"coder coder retention an programming" » "coder copper retention an programming" (Expand search), "coder color retention an programming" (Expand search), "coder water retention an programming" (Expand search), "coder coder retention and programming" (Expand search), "coder coder retention in programming" (Expand search), "coder coder retention on programming" (Expand search), "coder coder retention at programming" (Expand search), "coder decoder retention an programming" (Expand search), "code code retention an programming" (Expand search), "decoder codec retention an programming" (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)

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