Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuat tinh » thuat trinh, thuat kinh, thuat hinh
chua tinh » cua tinh, cha tinh, chua benh
trung vat » trung va, trung van, trong vat
dung cong » dung trong
vat dung » van dung, va dung, viet dung
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac

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 ((chua tinh) OR (thuat tinh)) - thanh trung vat dung cong dan ((than cao) OR (than cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chua tinh) OR (thuat tinh)) - thanh trung vat dung cong dan ((than cao) or (than cap))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chua tinh) OR (thuat tinh)) - thanh trung vat dung cong dan ((than cao) or (than cap))*.