Perhaps you should try some spelling variations:
thanh trung » thanh tung
khong cong » thong cong, khong cang, chong cong
hien danh » thien danh, hien hanh, hien nhanh
trung cua » truong cua, trung tuan, trung cap
cua khong » hua khong, cua phuong, cua thuong
cong ban » cong bang, cong san, cong tan
hang vau » hang dau, hang cau, hang vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien danh - thanh trung cua khong cong ban ((hang vau) or (hang va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien danh - thanh trung cua khong cong ban ((hang vau) OR (hang va)).
• Adding a wildcard symbol may retrieve word variants: hoc hien danh - thanh trung cua khong cong ban ((hang vau) or (hang va))*.