Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
choc kinh » chuc kinh, cho sinh, luoc kinh
dung cong » dung trong
nhan cach » phan cac
hoc kinh » hoc sinh, luoc kinh
trinh ve » trinh he, trinh va, trinh vi
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, thanh cac
ve dung » ve duong, ve rung, va dung

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 kinh) OR (choc kinh)) sach - hanh trinh ve dung cong tan ((than cap) OR (nhan cach))~.
• Adding a wildcard symbol may retrieve word variants: ((hoc kinh) or (choc kinh)) sach - hanh trinh ve dung cong tan ((than cap) or (nhan cach))*.