Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
nhieu tang » hieu lang, nhiet nang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong tac » cong ty
than cap » khan cap, thanh lap, thanh cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (nhieu tang)) - thanh trung cua nhung ((cong san) OR (cong tac)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (nhieu tang)) - thanh trung cua nhung ((cong san) OR (cong tac)) than cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (nhieu tang)) - thanh trung cua nhung ((cong san) OR (cong tac)) than cap*".