Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh huong
thieu sang » chieu sang, thieu khang, thieu quang
thanh tung » thanh cong
luan chong » luan chung, luan cong, luan phong
chong cong » cong cong, thong cong, cuong cong
hoc thieu » toc thieu, hoc hien
thanh cac » hanh cac, thanh bac, thanh ca
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, than cua

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) or (thanh tung)) luan chong cong dan ((than cap) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - ((thanh truong) OR (thanh tung)) luan chong cong dan ((than cap) OR (thanh cac)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((thanh truong) or (thanh tung)) luan chong cong dan ((than cap) or (thanh cac))*.