Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh dung » thanh duong, thanh tung, thanh hung
cua thuong » cua truong, cua phuong, cua huong
hoc chieu » hoc thieu, ho chieu, hoc hien
ca thuong » cao thuong, va thuong, cp thuong
tao khang » tao khoang, tao zhang, dao khang
dong tao » dong tai, dong dao, dong bao
chien » hien, thien

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sang - thanh dung ((cua thuong) or (ca thuong)) dong tao khang chien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - thanh dung ((cua thuong) OR (ca thuong)) dong tao khang chien.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - thanh dung ((cua thuong) or (ca thuong)) dong tao khang chien*.