Perhaps you should try some spelling variations:
"coder _ python algorithm validation" » "coder _ python algorithm evaluation" (Expand search), "coder _ python algorithm application" (Expand search), "coder _ python algorithms evaluation" (Expand search), "coder _ pynthon algorithm validation" (Expand search), "coder _ python algoritmo validation" (Expand search), "coder _ pattern algorithm validation" (Expand search)
"manim python python python programming" » "manim pythons python python programming" (Expand search), "manim piton python python programming" (Expand search), "manim pitons python python programming" (Expand search), "monty 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 validation\") OR (\"manim python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder _ python algorithm validation ) OR ( manim python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder _ python algorithm validation") OR ("manim python python python programming"))*.