Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
tang thanh » dang thanh, trung thanh, hoang thanh
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu

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 - thanh trung tuan dung cong ((tang thanh) or (truong thanh)) cham~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung tuan dung cong ((tang thanh) OR (truong thanh)) cham.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung tuan dung cong ((tang thanh) or (truong thanh)) cham*.