Perhaps you should try some spelling variations:
thanh tung » thanh cong
tung cua » trung cua, tuong cua, dung cua
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, cong dong
khan cap » khan ap, than cap, khoan cam
o cuu » ho cuu, so cuu, o cua
_ cuu » _ cua, _ cau, _ nuu

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: ((o cuu) OR (_ cuu)) tinh - thanh tung cua tong ((cong dan) OR (huong dan)) khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((o cuu) or (_ cuu)) tinh - thanh tung cua tong ((cong dan) OR (huong dan)) khan cap~".
• Adding a wildcard symbol may retrieve word variants: ((o cuu) or (_ cuu)) tinh - thanh tung cua tong ((cong dan) OR (huong dan)) khan cap*.