Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
luong cong » dung cong, trong cong, cong cong
doi chieu » doc hieu, doi chi, ho chieu
trung cao » truong cao, trung cap, trung co
ung cong » dung cong, duong cong, cuong cong
ban phan » ban phap, van phan, ban than

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 xanh - thanh trung cao ((ung cong) OR (luong cong)) ban phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh trung cao ((ung cong) OR (luong cong)) ban phan tu*".