Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
cua viet » hoa viet, cua vat, cua dieu
tu cach » tu cac
cach tu » cach thuc
tu nang » tru nang, tu nong, tu nano
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
ca viet » va viet, co viet, hoa viet
x hoi » o hoi, x ho, 5 hoi

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: tu cach tu nang ((x hoi) OR (xa hoi)). hieu ve pham duc va thanh tai ((cua viet) OR (ca viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach tu nang ((x hoi) OR (xa hoi)). hieu ve pham duc va thanh tai ((cua viet) or (ca viet))~".
• Adding a wildcard symbol may retrieve word variants: tu cach tu nang ((x hoi) OR (xa hoi)). hieu ve pham duc va thanh tai ((cua viet) or (ca viet))*.