Hi, Hashem,
Examples may be using the " when searching.
"prozac" adverse effects - this reveals a list of side effects
Physical "w1 therapy" - reveals w1 therapy search results
Cat "persian" - reveals Persian cat details
The " has to be in the correct position for this to work.
Sources for advanced search terms:
https://www.ampercent.com/bing-search-tips-commands/9282/
https://www.lifewire.com/bing-advanced-search-3482817
You might also go to Bing Search > Click the Feedback link at the bottom
Check Suggestion > Submit Suggestion to Support/Developers
Check Dislike > Submit to Support/Developers when an advanced search term is not working.