Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
nganh khang » nganh khong, ngan hang, nhanh thang
cach thuc » anh thuc, cac thu
thuoc tai » nuoc tai, hoc tai, thuoc ma
chau nhan » chan nhan, chau phan, ca nhan
thuc tap » tuc tap, thuc thai, thuc vat
cong hoa » dong hoc, hang hoa
dong hoa » dong hoc, dong co
hoi chau » hoi chu, hoi cham, hai chau
tu cach » tu cac
tai hoi » tai khoi, dai hoi, tai hai
nhan va » nhan tai, nhan dan, nhan tao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach thuc tap, nghien cuu ((cong hoa) OR (dong hoa)) nganh khang thuoc tai hoi chau nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach thuc tap, nghien cuu ((cong hoa) OR (dong hoa)) nganh khang thuoc tai hoi chau nhan va*".