Perhaps you should try some spelling variations:
nganh khoa » nganh khong, doanh khoa, anh khoa
nganh hoa » thanh hoa, khanh hoa, danh hoa
tuan phan » luan phan, toan phan, tuan pham
mach hoc » cach hoc, dich hoc, anh hoc
van tuan » van quan, van ban, anh tuan
tu mach » tu cach, tu manh, tu hach
hai van » thai van, ha van, hai tan
mo hoc » mon hoc, co hoc
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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 cuu mo hoc ((nganh khoa) or (nganh hoa)) hoc xa hai van tuan phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien cuu mo hoc ((nganh khoa) OR (nganh hoa)) hoc xa hai van tuan phan.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu mo hoc ((nganh khoa) or (nganh hoa)) hoc xa hai van tuan phan*.