Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
van thanh » ban thanh, van tuan
cac thoi » cac toi, cac hop, cac tro
thoi tap » toi tap, hoc tap, thoi dai
khoa hoc » hoa hoc
van phan » van phong, luan phan, van ban
thu cac » tu cac, thu xac, thu cuc
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: thu cac thoi tap, nghien cuu mo hoc nganh khoa hoc ma hoi ((van phan) or (van thanh)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu cac thoi tap, nghien cuu mo hoc nganh khoa hoc ma hoi ((van phan) OR (van thanh)) dan.
• Adding a wildcard symbol may retrieve word variants: thu cac thoi tap, nghien cuu mo hoc nganh khoa hoc ma hoi ((van phan) or (van thanh)) dan*.