Perhaps you should try some spelling variations:
nhanh thanh » phan thanh
nhanh tinh » hanh trinh, nhan sinh
dien sach » dien anh
nang cong » nang song, dang cong, bang cong
hoc dien » hoc hien, hoc vien, hoc dieu
van nang » van quang, van ban, van dong
van toan » van tuan, van thanh, manh toan
van tan » van tuan, van ban, van tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dien sach - ((nhanh thanh) OR (nhanh tinh)) van nang cong ((van toan) OR (van tan)) ban~.
• Adding a wildcard symbol may retrieve word variants: hoc dien sach - ((nhanh thanh) or (nhanh tinh)) van nang cong ((van toan) or (van tan)) ban*.