Perhaps you should try some spelling variations:
"coder _ python algorithm doi" » "coder _ pynthon algorithm doi" (Expand search), "coder _ python algoritmo doi" (Expand search), "coder _ pattern algorithm doi" (Expand search), "coder _ python algorithms doi" (Expand search), "coder _ python algorithm ii" (Expand search), "coder _ python algorithm dc" (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), "manim 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 _ python algorithm doi\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder _ python algorithm doi ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder _ python algorithm doi") OR ("api python python python programming"))*.