Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh dung » thanh duong, thanh tung, thanh hung
hieu lang » hieu quang, nhieu tang, hieu van
cac trong » cac truong, tac trong, ca trong
thong den » thong dien, thong dan, tuong den
den tran » den tuan, den thanh, dang tran
tran cao » toan cao, tran chau, trang cho

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) OR (hieu lang)) - thanh dung ((cac trong) or (cay trong)) thong den tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (hieu lang)) - thanh dung ((cac trong) OR (cay trong)) thong den tran cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) OR (hieu lang)) - thanh dung ((cac trong) or (cay trong)) thong den tran cao*".