Perhaps you should try some spelling variations:
"coder decoder coding and system" » "coder decoder codecs and system" (Expand search), "coder decoder using and system" (Expand search), "coder decoder codec and system" (Expand search), "encoder decoder coding and system" (Expand search), "coder decoder coding rna system" (Expand search), "coder decoder coding and systems" (Expand search), "coder decoder coding and systemic" (Expand search), "coder decoder coding and ecosystem" (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), "rpa 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 decoder coding and system") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder coding and system\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder decoder coding and system ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder decoder coding and system") OR ("api python python python programming"))*.