Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu quang » thieu quang, hieu quan, hieu qua
hanh bang » anh bang, hanh mang, lanh bang
dung cong » dung trong
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
bang vat » bang va, dang vat, cang vat
vat dung » van dung, va dung, viet dung
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (hieu quang)) - hanh bang vat dung cong danh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu quang)) - hanh bang vat dung cong danh toan tap*.