Perhaps you should try some spelling variations:
tuyen tai » truyen tai, tuyen tap, xuyen tai
tien dung » tin dung, tieu dung, tien luong
tien hung » tien luong, bien chung, viet hung
tac kiem » tac ke, thi kiem, va kiem
cac thu » cach thuc, cac thoi
ban ve » ban va
ve xay » va xay, ke xay, de xay

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: tuyen tai ((tac kiem) OR (cac thu)) đe co ban ve xay ((tien dung) OR (tien hung)) cong~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuyen tai ((tac kiem) or (cac thu)) đe co ban ve xay ((tien dung) OR (tien hung)) cong~".
• Adding a wildcard symbol may retrieve word variants: tuyen tai ((tac kiem) or (cac thu)) đe co ban ve xay ((tien dung) OR (tien hung)) cong*.