Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
quan tong » quan trong, quan dong, quan nong
quan long » quan lang, quan dong, quan hoang
tan thanh » tran thanh, tang thanh, toan thanh
thanh tap » thanh lap, thanh tai, thanh tay
cong tan » cong tac, cong san, cong 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 ((chieu sang) or (chieu xanh)) - thanh truong ((quan tong) OR (quan long)) cong tan thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - thanh truong ((quan tong) OR (quan long)) cong tan thanh tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu xanh)) - thanh truong ((quan tong) OR (quan long)) cong tan thanh tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu xanh)) - thanh truong ((quan tong) OR (quan long)) cong tan thanh tap*.