Perhaps you should try some spelling variations:
"coder precoder coverage plc programming" » "coder code coverage plc programming" (Expand search), "coder precoder coverage c programming" (Expand search), "coder precoder coverage block programming" (Expand search), "coder precoder coverage _ programming" (Expand search), "coder decoder coverage plc programming" (Expand search), "coder precoder coverage dcc programming" (Expand search), "coder precoder coverage policy programming" (Expand search), "coder precoder coverage public 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 coverage plc programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder coverage plc programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder coverage plc programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder coverage plc programming") OR ("api python python python programming"))*.