Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
cua khong » hua khong, cua phuong, cua thuong
trong van » trong cac
ho chiet » ho chieu, ho thiet, hoa thiet
tung cua » trung cua, tuong cua, dung cua
cong san » cong tac
chat cao » chat co, chat cho, chat bao

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: ((ho chiet) OR (hoc thiet)) tach - thanh tung cua khong ((trong van) OR (cong san)) chat cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) OR (hoc thiet)) tach - thanh tung cua khong ((trong van) or (cong san)) chat cao~".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) OR (hoc thiet)) tach - thanh tung cua khong ((trong van) or (cong san)) chat cao*.