Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sang » chieu sang, thieu khang, thieu quang
trung tuan » trung thanh, trung tam, tran tuan
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
van thanh » ban thanh, van tuan
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 - thanh trung tuan thong cong ((((xuan toan) or (van thanh))) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh trung tuan thong cong ((((xuan toan) OR (van thanh))) OR (dan than)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh trung tuan thong cong ((((xuan toan) or (van thanh))) or (dan than)) cau*.