Perhaps you should try some spelling variations:
"coder leaf coverage estimation function" » "coder leaf coverage estimating functions" (Expand search), "coder leaf coverage activation function" (Expand search), "coder leaf coverage excitation function" (Expand search), "coder of coverage estimation function" (Expand search), "coder land coverage estimation function" (Expand search), "coder area coverage estimation function" (Expand search), "clover leaf coverage estimation function" (Expand search), "under leaf coverage estimation function" (Expand search), "alder leaf coverage estimation function" (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 leaf coverage estimation function") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder leaf coverage estimation function\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder leaf coverage estimation function ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder leaf coverage estimation function") OR ("api python python python programming"))*.