Perhaps you should try some spelling variations:
"coder function approximation complexity from" » "coder function approximation property from" (Expand search), "coder function estimation complexity from" (Expand search), "coder function population complexity from" (Expand search), "modern function approximation complexity from" (Expand search), "power function approximation complexity from" (Expand search), "over function approximation complexity from" (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 function approximation complexity from\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder function approximation complexity from ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder function approximation complexity from") OR ("api python python python programming"))*.