Perhaps you should try some spelling variations:
nghien chuc » nghien cuu, nghiem thuc, nghiep thuc
thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
nang thuc » dang thuoc, nhanh thuc, trang thuc
cach hoc » cach thuc, cach thoi, dich hoc
van nhan » van phan, van thanh, danh nhan
nhan tai » hang tai, van tai, toan tai
su cach » su sach, tu cach, su cac
hoi van » hoi va, hoi dan, hai van

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

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