Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien tinh » khien tinh, thien tinh, bien tinh
trung cua » truong cua, trung tuan, trung cap
dang cong » dung cong
cua dang » cua cong, cua ban
cong tac » cong ty
tac vang » cac van, tac dung, tac dong
vang ban » van ban, hang ban, nang ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien tinh - thanh trung cua dang cong tac vang ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien tinh - thanh trung cua dang cong tac vang ban*.