Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
thanh tao » thanh thao, thanh tai, thanh tay
van thanh » ban thanh, van tuan
goc nganh » hoc nganh, hoc nhanh, cac nganh
khoa hoc » hoa hoc
hai van » thai van, ha van, hai tan
su sach » so sach, vu sach
hoi tai » hoi trac
hoc tai » hoc dai, hoc tap, hoc bai
duc mo » duc m
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi
mo goc » mot goc, mo hoc, mo uoc

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((hoi tai) or (hoc tai)), nguyen duc mo goc nganh khoa hoc xa hai van thanh tao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((hoi tai) OR (hoc tai)), nguyen duc mo goc nganh khoa hoc xa hai van thanh tao.
• Adding a wildcard symbol may retrieve word variants: su sach ((hoi tai) or (hoc tai)), nguyen duc mo goc nganh khoa hoc xa hai van thanh tao*.