Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trong vat » trong van, trong va, trong hoat
trong dat » trong dam, trong dao, trong dau
trong dan » trong dang, trong san, trong tan
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
than cao » toan cao, thai cao, than cap

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 - thanh ((trong vat) OR (trong dat)) dung ((trong dan) or (cong san)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh ((trong vat) OR (trong dat)) dung ((trong dan) OR (cong san)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh ((trong vat) OR (trong dat)) dung ((trong dan) or (cong san)) than cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh ((trong vat) OR (trong dat)) dung ((trong dan) or (cong san)) than cao*.