Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
cong thuoc » cong thuc, dong thuoc, long thuoc
hoc nganh » hoc nhanh
mach hoc » dich hoc, anh hoc, bac hoc
cach hoc » cach thuc, cach thoi, dich hoc
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
thuoc va » thuc va, thuoc ma, thuong va
cac nhan » ca nhan, cac nha, cam nhan
nhan van » nhan dan, nhan va, phan van
hoa cac » hoa chat, chon cac
va hoa » van hoa, va hoc, ma hoa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so ((mach hoc) OR (cach hoc)) tap, nghien cuu tong hoc nganh cong thuoc va hoa cac nhan van~.
• Adding a wildcard symbol may retrieve word variants: so ((mach hoc) or (cach hoc)) tap, nghien cuu tong hoc nganh cong thuoc va hoa cac nhan van*.