Perhaps you should try some spelling variations:
"coder coder precoder design computer" » "coder coder precoding design computer" (Expand search), "coder coder decoder design computer" (Expand search), "coder decoder precoder design computer" (Expand search), "code code precoder design computer" (Expand search), "decoder codec precoder design computer" (Expand search)
"api pitons python python programming" » "api pitons pythons python programming" (Expand search), "api pitons piton python programming" (Expand search), "api pitons pytm python programming" (Expand search), "api citons python python programming" (Expand search), "api pitoni python python programming" (Expand search), "api pitoes 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 coder precoder design computer") OR ("api pitons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder precoder design computer\") OR (\"api pitons python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder precoder design computer ) OR ( api pitons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder precoder design computer") OR ("api pitons python python programming"))*.