Perhaps you should try some spelling variations:
diffraction process » diffractive process (Expand search), diffraction cross (Expand search), diffractive processes (Expand search)
of diffraction » ray diffraction (Expand search), and diffraction (Expand search), rays diffraction (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder coder » coder decoder (Expand search), code code (Expand search), decoder codec (Expand search)
api python » rpa python (Expand search), manim python (Expand search)
coder of » code of (Expand search), codes of (Expand search), codex of (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 coder of diffraction process ) OR ( api python python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder coder of diffraction process ) OR ( api python python python programming ))*.