Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
trong dan » trong dang, trong san, trong tan
vat dung » van dung, viet dung, mat duong
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
va dung » van dung, va duong, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - thanh truong ((va dung) OR (vat dung)) trong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - thanh truong ((va dung) OR (vat dung)) trong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh truong ((va dung) OR (vat dung)) trong dan toan cao*.