Perhaps you should try some spelling variations:
"coder coder based optical complexity" » "coder coder based spatial complexity" (Expand search), "coder coder based medical complexity" (Expand search), "coder coder based lexical complexity" (Expand search), "coder coder and optical complexity" (Expand search), "coder decoder based optical complexity" (Expand search), "code code based optical complexity" (Expand search), "decoder codec based optical complexity" (Expand search), "coder code based optical complexity" (Expand search), "coder foder based optical complexity" (Expand search), "coder codec based optical 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)

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 based optical complexity") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder based optical complexity\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder based optical complexity ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder based optical complexity") OR ("api python python python programming"))*.