Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu lang » chieu sang, hieu quang, nhieu tang
thanh ung » thanh tung, thanh hung, thanh dung
dung cong » dung trong
cong bang » cuong bang, dong bang, hong bang
bang than » bang thanh, ban than, sang than
tac dung » sach dung, xay dung, tin dung
than cap » khan cap, thanh lap, thanh cac
ung tac » tuong tac, huong tac, muong tac

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 tinh) OR (hieu lang)) - thanh ung tac dung cong bang than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) OR (hieu lang)) - thanh ung tac dung cong bang than cap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) OR (hieu lang)) - thanh ung tac dung cong bang than cap*.