Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
van thanh » van tuan
ban thanh » ban hanh, ban hang

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) OR (chiet tach)) - thanh trung cua nhung cong ((van thanh) OR (ban thanh)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chiet tach)) - thanh trung cua nhung cong ((van thanh) OR (ban thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chiet tach)) - thanh trung cua nhung cong ((van thanh) OR (ban thanh)) cao*.