Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
dung tuong » dung thuong, dung truong, dung trong
thanh toan » thanh hoa, thanh san
trung tac » trung tam, trong tac, trung tai
tac dung » sach dung, xay dung, tin dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) or (chieu sach)) - thanh trung tac dung tuong ((thanh toan) OR (tinh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chieu sach)) - thanh trung tac dung tuong ((thanh toan) OR (tinh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) or (chieu sach)) - thanh trung tac dung tuong ((thanh toan) OR (tinh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (chieu sach)) - thanh trung tac dung tuong ((thanh toan) OR (tinh toan)) cao*.