Perhaps you should try some spelling variations:
"Optician and scientific concept maker" » "Optician and scientific concepts maker", "Optician and scientific context maker", "Optician and scientific content maker", "Optician and scientific concept cancer", "Optician and scientific concept based", "Optician and scientific concept maps"
"optician and scientific intent maker" » "optician and scientific content maker", "optician and scientific interest maker", "optician and scientific context maker", "optician and scientific internet makes", "optician and scientific intent model"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("optician and scientific intent maker") or ("Optician and scientific concept maker"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("optician and scientific intent maker") OR ("Optician and scientific concept maker")).
• Removing quotes may allow a broader search: (( optician and scientific intent maker ) or ( Optician and scientific concept maker )).
• Adding a wildcard symbol may retrieve word variants: (("optician and scientific intent maker") or ("Optician and scientific concept maker"))*.