Perhaps you should try some spelling variations:
thanh trung » thanh tung
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong van » cong vang, cong san, song van
phat cau » phan cau, phat am, dat cau
phap cau » phan cau, phap ca, phap cac
ho hieu » ho chieu, hoi hieu, nho hieu
pha cau » phan cau, pha cac, phan cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - thanh trung cua thong cong van ((((phat cau) or (phap cau))) or (pha cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh trung cua thong cong van ((((phat cau) OR (phap cau))) OR (pha cau)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh trung cua thong cong van ((((phat cau) or (phap cau))) or (pha cau))*.