Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chuc » theo chu, tho chu, treo chu
tong cong » trong cong, cong cong, dung cong
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
toan tai » toan tap, doanh tai, toan cao
ha tong » han tong, ha dong, ha tang

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: theo chuc nang - thanh trung ha tong cong san ((toan tai) OR (((toan ban) OR (van ban))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chuc nang - thanh trung ha tong cong san ((toan tai) or (((toan ban) OR (van ban))))~".
• Adding a wildcard symbol may retrieve word variants: theo chuc nang - thanh trung ha tong cong san ((toan tai) or (((toan ban) OR (van ban))))*.