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