Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
nganh khang » nganh khong, ngan hang, nhanh thang
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
thuoc tai » nuoc tai, hoc tai, thuoc ma
chau nhan » chan nhan, chau phan, ca nhan
cong hoc » dong hoc, cong hoa, cong ho
cong coc » cong cuoc, cong cac, cong co
hai chau » lai chau, ha chau, hat chau
nhan dan » phan dau, gian dan, nhan tai
cac tuc » cac toc, cac tu, cac tac
tai hai » thi hai, dai hai, tai ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac tuc tap, nghien thu ((cong hoc) OR (cong coc)) nganh khang thuoc tai hai chau nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac tuc tap, nghien thu ((cong hoc) OR (cong coc)) nganh khang thuoc tai hai chau nhan dan*".