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