Perhaps you should try some spelling variations:
"coder precoder coverage control programming" » "coder precoder coverage control programme" (Expand search), "coder precoder coverage cobol programming" (Expand search), "coder precoder coverage control programmes" (Expand search), "coder code coverage control programming" (Expand search), "coder decoder coverage control programming" (Expand search)
"and python python python programming" » "and pythons python python programming" (Expand search), "and piton python python programming" (Expand search), "and pitons python python programming" (Expand search), "in python python python programming" (Expand search), "on python python python programming" (Expand search), "api python 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 coverage control programming") OR ("and python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder coverage control programming\") OR (\"and python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder coverage control programming ) OR ( and python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder coverage control programming") OR ("and python python python programming"))*.