Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
dong thanh » truong thanh
phap dung » pham dung, phap cung, phap dong
phan dung » phan ung, phan dang, chan dung
thanh hoa » thanh pho
hoa cao » hoc cao, hoa co, hoa cac

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 xanh) OR (chieu sang)) - thanh trung ((phap dung) or (phan dung)) dong thanh hoa cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - thanh trung ((phap dung) OR (phan dung)) dong thanh hoa cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - thanh trung ((phap dung) or (phan dung)) dong thanh hoa cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - thanh trung ((phap dung) or (phan dung)) dong thanh hoa cao*.