Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
thanh tinh » thanh binh, nhanh tinh, than kinh
chat dung » chat luong, chat quang, thuat dung
chan dung » van dung, dan dung
trong tac » trong cac, tuong tac, trong tan
tac phan » tac pham, tai phan, tac phat
phan dau » phan tu, hang dau

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 (chieu sach)) - thanh tinh ((chat dung) OR (chan dung)) trong tac phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - thanh tinh ((chat dung) OR (chan dung)) trong tac phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu sach)) - thanh tinh ((chat dung) OR (chan dung)) trong tac phan dau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu sach)) - thanh tinh ((chat dung) OR (chan dung)) trong tac phan dau*.