Perhaps you should try some spelling variations:
"coder _ testing algorithms simulation" » "coder _ testing algorithm simulation" (Expand search), "coder _ teaching algorithms simulation" (Expand search), "coder _ hastings algorithms simulation" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder _ testing algorithms simulation") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ testing algorithms simulation\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ testing algorithms simulation ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ testing algorithms simulation") OR ("api python python python programming"))*.