Perhaps you should try some spelling variations:
thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
nang thuc » dang thuoc, nhanh thuc, trang thuc
cuu nang » chuc nang, cam nang, cuu van
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
cac hoc » cach hoc, cac hop, bac hoc
hoi van » hoi va, hoi dan, hoi han
hai van » thai van, ha van, hai tan
su cac » tu cac, su cao, su can
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: su cac hoc tap, nghien cuu nang thuc doanh khoa hoc xa ((hoi van) or (hai van)) nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac hoc tap, nghien cuu nang thuc doanh khoa hoc xa ((hoi van) OR (hai van)) nhan tai.
• Adding a wildcard symbol may retrieve word variants: su cac hoc tap, nghien cuu nang thuc doanh khoa hoc xa ((hoi van) or (hai van)) nhan tai*.