Perhaps you should try some spelling variations:
trung thanh » truong thanh
trung tuan » trung tam, tran tuan, truong thanh
nhung cong » dung cong, thong cong, hang cong
dang thanh » dong thanh, dang hanh, hoang thanh
hien xanh » hien hanh, hien nhanh, chieu xanh
sang than » cang thang, sang tao, ban than

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: hoc hien xanh - thanh ((trung tuan) OR (trung thanh)) nhung cong ((sang than) OR (dang thanh)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - thanh ((trung tuan) or (trung thanh)) nhung cong ((sang than) OR (dang thanh)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh ((trung tuan) or (trung thanh)) nhung cong ((sang than) OR (dang thanh)) cau*.