Perhaps you should try some spelling variations:
"coder precoder limit teaching programming" » "coder precoder limit teaching program" (Expand search), "coder decoder limit teaching programming" (Expand search), "coder precoder aiming teaching programming" (Expand search), "coder precoder first teaching programming" (Expand search), "coder precoder ict teaching 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 precoder limit teaching programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder limit teaching programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder limit teaching programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder limit teaching programming") OR ("api python python python programming"))*.