Perhaps you should try some spelling variations:
truong chung » truong trung
truong hang » truong dang, truong thanh, truong giang
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
nhan dang » nhan dan, phan dang, tran dang
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
va than » van than, va phan, va tham

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - nhan dang xay ((truong hang) or (truong chung)) ((va than) or (va thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - nhan dang xay ((truong hang) OR (truong chung)) ((va than) OR (va thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - nhan dang xay ((truong hang) or (truong chung)) ((va than) or (va thanh)) cau*.