Perhaps you should try some spelling variations:
based diffraction » laser diffraction, waves diffraction, wave diffraction
diffraction array » diffraction natural, diffraction from, diffraction data
program python » program path, program paths, program potong
python based » python basic, python basics, python care
https » http

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: program python based diffraction array https~.
• Adding a wildcard symbol may retrieve word variants: program python based diffraction array https*.