Perhaps you should try some spelling variations:
dich hoc » sinh hoc, hinh hoc, tinh hoc
cuu tong » cuu cong, cuu tinh, huu tung
tong boc » thong bac, tong quoc, trong bac
boc ngan » bo ngan, hoc nganh, buoi ngan
nhan dan » phan dau, gian dan, nhan tai
tu dich » te dich, chu dich, hut dich
va nhan » van nhan, ca nhan, va phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dich hoc tap, nghien cuu tong boc ngan hang ((hoc xa) or (hoc ma)) hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dich hoc tap, nghien cuu tong boc ngan hang ((hoc xa) OR (hoc ma)) hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu dich hoc tap, nghien cuu tong boc ngan hang ((hoc xa) or (hoc ma)) hoi va nhan dan*.