Perhaps you should try some spelling variations:
thanh trung » thanh tung
thong cong » trong cong, tong cong, thong thong
khang chan » khang chien, quang chan
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
khan cap » khan ap, than cap, khoan cam
ho hieu » ho chieu, hoi hieu, nho hieu

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 ((khan cap) or (khang chan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh trung cua thong cong van ((khan cap) OR (khang chan)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh trung cua thong cong van ((khan cap) or (khang chan))*.