Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
nhung don » nhung van, nhung bo
bang cong » dang cong, bang song, hang cong
thanh cha » thanh ha, thanh nha, thanh phan
toan ban » van ban

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 cua ((nhung don) or (bang cong)) ban ((thanh cha) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh trung cua ((nhung don) OR (bang cong)) ban ((thanh cha) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh trung cua ((nhung don) or (bang cong)) ban ((thanh cha) or (toan ban))*.