Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
chieu tinh » trieu tinh, lieu tinh, chau tinh
trong quan » thong quan, tong quan, thong quang
trung tac » trung tam, trong tac, trung tai
tac dung » sach dung, xay dung, tin dung
van chat » cao chat

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 (chieu tinh)) - thanh trung tac dung trong quan ((van chat) or (van dao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu tinh)) - thanh trung tac dung trong quan ((van chat) OR (van dao)).
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu tinh)) - thanh trung tac dung trong quan ((van chat) or (van dao))*.