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