Perhaps you should try some spelling variations:
"coder coder retention visual programming" » "coder coder retention fetal programming" (Expand search), "coder coder attention visual programming" (Expand search), "coder coder detection visual programming" (Expand search), "coder coder retencao visual programming" (Expand search), "coder copper retention visual programming" (Expand search), "coder color retention visual programming" (Expand search), "coder water retention visual programming" (Expand search), "coder decoder retention visual programming" (Expand search), "code code retention visual programming" (Expand search), "decoder codec retention visual 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 visual programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder retention visual programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder retention visual programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder retention visual programming") OR ("api python python python programming"))*.