How does the search work on the Aliexpress page?

You can type in a word, or multiple words. In that case it will return the products that contain one of the words.
If you want to use multiple words that both needs to be part of the product title you should use the following way: [word](or|and)[word word] Example: [red skirt]or[yellow skirt] Example: [red skirt]and[yellow skirt] Remark: there should be only space between multiple words