Perhaps you should try some spelling variations:
nganh khong » nhanh chong, nganh nong, nganh khoa
nghien cac » nghiep cach, nghien cuu, nghiep cay
nganh cong » nhanh chong, thanh cong
tong khoi » xong khoi, tuong khoa, thong khoa
mach hoc » cach hoc, dich hoc, anh hoc
cac tong » cac tuong, cac cong, bac tong
phan dan » phan dang, phan dau, nhan dan
tu mach » tu cach, tu manh, tu hach
va phan » van phan, va phat, va phap
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu mach hoc tap, nghien cac tong khoi ((nganh khong) or (nganh cong)) hoc xa hoi va phan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien cac tong khoi ((nganh khong) OR (nganh cong)) hoc xa hoi va phan dan.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cac tong khoi ((nganh khong) or (nganh cong)) hoc xa hoi va phan dan*.