Perhaps you should try some spelling variations:
thanh tung » thanh cong
lieu tinh » trieu tinh, diep tinh, bien tinh
vat dung » van dung, viet dung, mat duong
cong san » cong tac
ho lieu » so lieu, co lieu, ho kieu
va dung » van dung, va duong, va ung
san can » san van, ban can, san chang
can cau » van cau, ban cau, ca cau

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 lieu tinh - ((thanh trung) OR (thanh tung)) ((va dung) OR (vat dung)) cong san can cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - ((thanh trung) OR (thanh tung)) ((va dung) or (vat dung)) cong san can cau~".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - ((thanh trung) OR (thanh tung)) ((va dung) or (vat dung)) cong san can cau*.