Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
mach hoc » cach hoc, dich hoc, anh hoc
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
nhan tai » hang tai, van tai, toan tai
tu mach » tu cach, tu manh, tu hach
cuu mon » cuu mo, cuu mot, cuu cong
hai van » thai van, ha van, hai tan
ma hai » ta hai, va hai, xa hai

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: tu mach hoc tap, nghien ((cuu mon) OR (thu cong)) hoc nganh khoa hoc ma hai van nhan tai~.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien ((cuu mon) or (thu cong)) hoc nganh khoa hoc ma hai van nhan tai*.