Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
thanh tran » thanh trang, thanh toan, thanh tra
khang cong » hang cong, thanh cong, dang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
hanh tran » hanh trang, hanh tram, thanh trang
van khang » van khanh, van thanh, van quang
cong san » cong tac
san ban » sang ban, van ban, can ban
ban he » bang he, ban ve, ban le

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien danh - ((hanh tran) or (thanh tran)) van khang cong san ban he~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien danh - ((hanh tran) OR (thanh tran)) van khang cong san ban he.
• Adding a wildcard symbol may retrieve word variants: hoc thien danh - ((hanh tran) or (thanh tran)) van khang cong san ban he*.