Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
doanh khoa » toan khoa
hoc doanh » hoa doanh, hoc danh, hoc dan
danh nhan » doanh nhan, thanh nhan, benh nhan
thu hanh » thu thanh, thuy hanh, thi hanh
hai danh » thai danh, hai anh, hai dang
khoa hoc » hoa hoc
toan hoc » toan khoa, van hoc, hoa hoc
cua toan » cuu toan, xuan toan, cua thanh
thoi dai » hoc dai, hoi dap, hoi dan
nhan dan » phan dau, gian dan, nhan tai
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu hanh) or (thuc hanh)) thoi dai, nghien cua toan hoc doanh khoa hoc xa hai danh nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu hanh) OR (thuc hanh)) thoi dai, nghien cua toan hoc doanh khoa hoc xa hai danh nhan dan.
• Adding a wildcard symbol may retrieve word variants: ((thu hanh) or (thuc hanh)) thoi dai, nghien cua toan hoc doanh khoa hoc xa hai danh nhan dan*.