Perhaps you should try some spelling variations:
"coder coder per student problem" » "coder coder per student profile" (Expand search), "coder decoder per student problem" (Expand search), "code code per student problem" (Expand search), "decoder codec per student problem" (Expand search), "coder coder year students problem" (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), "api 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 coder per student problem") OR ("manim python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder per student problem\") OR (\"manim python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder per student problem ) OR ( manim python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder per student problem") OR ("manim python python python programming"))*.