Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thien » hoc hien, hoc thieu, hoc thiet
cua dang » cua ban
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan tap » toan tap, tuan tai, tuyen tap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - canh doanh ((cua dang) OR (cua cong)) cong van tuan tap~".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - canh doanh ((cua dang) OR (cua cong)) cong van tuan tap*.