Thanks go to @rhermans and @azerbajdzan for the following answer, which may help others in future:
(* Hyperlinks are retrieved.*)
links = Import["https://lex.uz/en/search/nat?query=food%20safety", "Hyperlinks"];
(*The first 15 links are selected.*)
urlLinks = Take[URL[#] & /@ links, 15];
(*The documents in the selected links are saved as individual HTML files.*)
Table[URLDownload[urlLinks[[i]], ToString[deneme[i]] <> ".html"], {i,15}]
This code retrieves all the documents using URL links, with a caveat. The outputs are not really in good format because there are many undesirable comments in the imported documents.