Perhaps you should try some spelling variations:
"coder model complexity of processing" » "coder code complexity of processing" (Expand search), "coder social complexity of processing" (Expand search), "coder and complexity of processing" (Expand search), "coder model complexity and processing" (Expand search), "coder model complexity of process" (Expand search), "cover model complexity of processing" (Expand search), "decoder model complexity of processing" (Expand search), "copper model complexity of processing" (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.

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