Perhaps you should try some spelling variations:
nganh khang » nganh khong, ngan hang, nhanh thang
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
hoc nganh » hoc nhanh
dich hoc » hinh hoc, tinh hoc, kinh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
thuoc ma » hoc ma, duoc ma
cau nhan » chau nhan, ca nhan, cu nhan
hoi cau » hoi chu, hoc cau, hoa cau
nhan va » nhan tai, nhan dan, nhan tao
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: kon ((dich hoc) or (sinh hoc)) tap, nghien cuu cong hoc nganh khang thuoc ma hoi cau nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: kon ((dich hoc) OR (sinh hoc)) tap, nghien cuu cong hoc nganh khang thuoc ma hoi cau nhan va.
• Adding a wildcard symbol may retrieve word variants: kon ((dich hoc) or (sinh hoc)) tap, nghien cuu cong hoc nganh khang thuoc ma hoi cau nhan va*.