Perhaps you should try some spelling variations:
doanh khoa » toan khoa
cach thuc » anh thuc, cac thu
hoc doanh » hoa doanh, hoc danh, hoc dan
thuc tai » thuc thai, thuoc tai, thuc tap
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
khoa hoc » hoa hoc
tu cach » tu cac
hai van » thai van, ha van, hai tan
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma

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

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