Perhaps you should try some spelling variations:
thanh trung » thanh tung
thong cong » trong cong, tong cong, thong thong
hop nhieu » hoc thieu, ho chieu, he nhieu
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong lang » cong vang, cong luong, cong quang
ho nhieu » ho chieu, he nhieu, hoc thieu
khan cap » than cap, khoan cam, phan cac
khan ap » han ap, khan dam

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 nhieu) OR (hop nhieu)) tang - thanh trung cua thong cong lang ((khan cap) OR (khan ap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho nhieu) OR (hop nhieu)) tang - thanh trung cua thong cong lang ((khan cap) or (khan ap))~".
• Adding a wildcard symbol may retrieve word variants: ((ho nhieu) OR (hop nhieu)) tang - thanh trung cua thong cong lang ((khan cap) or (khan ap))*.