Perhaps you should try some spelling variations:
theo chua » ho chua, cheo cua, tho chu
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
anh danh » anh anh, anh dang, anh dinh
anh bang » anh hoang, anh quang, tinh bang
cong san » cong tac
va dung » van dung, va duong, vat dung
san van » tan van, luan van, tran van

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: ((theo chua) OR (theo chu)) xang - ((anh danh) OR (anh bang)) va dung cong san van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chua) OR (theo chu)) xang - ((anh danh) or (anh bang)) va dung cong san van ban~".
• Adding a wildcard symbol may retrieve word variants: ((theo chua) OR (theo chu)) xang - ((anh danh) or (anh bang)) va dung cong san van ban*.