Perhaps you should try some spelling variations:
khau thuong » khac thuong, khai thuong, khau thong
than thong » than thuong, toan thong, tran thong
dao thuoc » cao thuoc, tao thuoc, dang thuoc
thuoc ban » thuoc tan, thuoc dang, thu ban
khoa than » khoa luan, hoa thai, hoa tan
khoa khau » khoa kham, khoa phau, khoa chau
ban khoa » san khoa, van khoa, ba khoa
te lanh » te danh, te lan, tu lanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te lanh dao thuoc ban khoa than thong ) or ( te lanh dao thuoc ban khoa khau thuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te lanh dao thuoc ban khoa than thong ) OR ( te lanh dao thuoc ban khoa khau thuong )).
• Adding a wildcard symbol may retrieve word variants: (( te lanh dao thuoc ban khoa than thong ) or ( te lanh dao thuoc ban khoa khau thuong ))*.