Perhaps you should try some spelling variations:
thuong huong » thuong phuong, thuong luong, thong huong
thanh tuong » thanh thuong, thanh tung, thanh huong
hieu lang » chieu sang, hieu quang, nhieu tang
ca thuong » cao thuong, cua thuong, va thuong
doi hieu » doi chieu, doc hieu, doi hien
tuong ca » truong ca, tuong cay, tuong cua
xen phan » dien phan, kenh phan, benh phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - thanh tuong ca thuong huong ((xen phan) or (benh nhan)) dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - thanh tuong ca thuong huong ((xen phan) OR (benh nhan)) dau*.