Perhaps you should try some spelling variations:
truong phuong » truong chung, truong trung, dung phuong
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
trung cap » truong cao, trung tam
tang cua » mang cua, hang cua, tang luan
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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 - hanh ((trung cap) or (tang cua)) truong phuong ((dan toan) or (dan than)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh ((trung cap) OR (tang cua)) truong phuong ((dan toan) OR (dan than)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh ((trung cap) or (tang cua)) truong phuong ((dan toan) or (dan than)) tap*.