Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
trung cap » truong cao, trung tam
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, mot chieu
trung co » trung bo, trong co, truong cao
cong ban » cong bang, cong san, cong tan

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 - manh ((trung co) or (trung cap)) thong cong ban thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - manh ((trung co) OR (trung cap)) thong cong ban thanh lap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - manh ((trung co) or (trung cap)) thong cong ban thanh lap*.