Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
hanh hoc » thanh hoc, hinh hoc, anh hoc
khoa hoc » hoa hoc
van gian » van giang, dan gian, van giao
lu hanh » luu hanh, du hanh, ly hanh
va gian » va gianh, va giai, va gia
mo hoc » mon hoc, co hoc
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: lu hanh hoc tap, nghien cuu mo hoc nganh khoa hoc ma hoi ((va gian) or (van gian)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lu hanh hoc tap, nghien cuu mo hoc nganh khoa hoc ma hoi ((va gian) OR (van gian)) dan.
• Adding a wildcard symbol may retrieve word variants: lu hanh hoc tap, nghien cuu mo hoc nganh khoa hoc ma hoi ((va gian) or (van gian)) dan*.