Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
truong va » truong dai, truong cao, truong dao
tac than » tac thanh, tam than, bac thanh
tac nhan » tao nhan, cac nhan, dac nhan
va dung » van dung, va duong, vat dung

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 sang - thanh truong va dung trong ((tac than) OR (tac nhan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh truong va dung trong ((tac than) OR (tac nhan)) cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh truong va dung trong ((tac than) OR (tac nhan)) cao*.