Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
thoi tap » toi tap, hoc tap, thoi dai
cuu cong » cua cong, thu cong, cac cong
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
va cach » va cac
cuu mon » cuu mo, cuu mot, cuu tong
va nhan » van nhan, ca nhan, va phan
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: va cach thoi tap, nghien ((cuu mon) or (cuu cong)) hoc nganh khoa hoc ma hoi va nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: va cach thoi tap, nghien ((cuu mon) OR (cuu cong)) hoc nganh khoa hoc ma hoi va nhan tai.
• Adding a wildcard symbol may retrieve word variants: va cach thoi tap, nghien ((cuu mon) or (cuu cong)) hoc nganh khoa hoc ma hoi va nhan tai*.