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