Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
chiet tach » chieu sach
canh manh » lanh manh, canh tranh, cach mang
ho chiet » ho chieu, ho thiet, hoc thiet
manh cua » doanh cua, ban cua
cong tan » cong tac, cong ty, cong ha
cong san » cong tac
toan ban » van 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 manh cua ban ((((cong tan) OR (cong san))) OR (cong thanh)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - canh manh cua ban ((((cong tan) OR (cong san))) or (cong thanh)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh manh cua ban ((((cong tan) OR (cong san))) or (cong thanh)) toan ban*.