Perhaps you should try some spelling variations:
nganh khoa » nganh khong, doanh khoa, anh khoa
thuc cach » thuoc sach, truoc cach, thuc hanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
cach hoi » cach thoi, cach noi, cach hoc
van nhan » van phan, van thanh, danh nhan
nhan tai » hang tai, van tai, toan tai
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
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.

• Performing a fuzzy search may retrieve terms with similar spellings: thuc cach hoi dap, nghien cuu mot hoc ((nganh khoa) or (nganh hoa)) hoc ma hai van nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuc cach hoi dap, nghien cuu mot hoc ((nganh khoa) OR (nganh hoa)) hoc ma hai van nhan tai.
• Adding a wildcard symbol may retrieve word variants: thuc cach hoi dap, nghien cuu mot hoc ((nganh khoa) or (nganh hoa)) hoc ma hai van nhan tai*.