Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu sang » chieu sach, chieu xanh, nhieu tang
truong van » trong van, truong va, truong dai
trinh tran » trinh trang, trinh toan, trinh tren
hieu lang » hieu quang, nhieu tang, hieu van
dong cong » duong cong, dung cong, cong cong
dang cong » dung cong
tran tuan » tran xuan, tran quang, tran thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) OR (chieu sang)) - thanh truong van ((dong cong) or (dang cong)) trinh tran tuan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - thanh truong van ((dong cong) OR (dang cong)) trinh tran tuan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (chieu sang)) - thanh truong van ((dong cong) or (dang cong)) trinh tran tuan".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) OR (chieu sang)) - thanh truong van ((dong cong) or (dang cong)) trinh tran tuan*.