Perhaps you should try some spelling variations:
chiet tach » chieu sach
thong cong » trong cong, tong cong, thong thong
tranh cua » manh cua
doanh cua » doanh luan
ho chiet » ho chieu, ho thiet, hoc thiet
cong tan » cong tac, cong san, cong thanh
khan cap » khan ap, than cap, khoan cam
toan tap » toan ban

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 tach - canh ((tranh cua) OR (doanh cua)) thong cong tan ((khan cap) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - canh ((tranh cua) OR (doanh cua)) thong cong tan ((khan cap) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh ((tranh cua) OR (doanh cua)) thong cong tan ((khan cap) or (toan tap))*.