Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
thong cong » trong cong, tong cong, thong thong
tung tam » trung tam, dung tam, tuong tac
vung tam » vung tau, vung tay, trung tam
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chiet tach)) - thanh ((tung tam) OR (vung tam)) thong cong dan than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chiet tach)) - thanh ((tung tam) OR (vung tam)) thong cong dan than cao~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chiet tach)) - thanh ((tung tam) OR (vung tam)) thong cong dan than cao*.