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