Perhaps you should try some spelling variations:
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thanh hoa » thanh pho
danh nhan » doanh nhan, thanh nhan, benh nhan
sach hoi » sach doi, sach moi, cach thoi
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
te sach » toc sach
hoc bai » hoc dai, hoc giai
bai hoi » bai choi, bai hoc, dai hoi
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: te sach hoi dap, nghien cuu dong hoc thanh hoa hoc bai hoi ((va nhan) or (danh nhan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoi dap, nghien cuu dong hoc thanh hoa hoc bai hoi ((va nhan) OR (danh nhan)) van.
• Adding a wildcard symbol may retrieve word variants: te sach hoi dap, nghien cuu dong hoc thanh hoa hoc bai hoi ((va nhan) or (danh nhan)) van*.