Perhaps you should try some spelling variations:
tuyen tai » truyen tai, xuyen tai, nguyen tai
cach tieu » sach thieu, cach bien, cach tu
tien dung » tin dung, tieu dung, tien hung
dung cong » dung trong
xay tien » may tien, day tieng, tay tieng
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tuyen tai) OR (tuyen tap)) ((cach tieu) or (cac thu)) đe co ban ve xay tien dung cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tuyen tai) OR (tuyen tap)) ((cach tieu) OR (cac thu)) đe co ban ve xay tien dung cong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tuyen tai) OR (tuyen tap)) ((cach tieu) or (cac thu)) đe co ban ve xay tien dung cong".
• Adding a wildcard symbol may retrieve word variants: ((tuyen tai) OR (tuyen tap)) ((cach tieu) or (cac thu)) đe co ban ve xay tien dung cong*.