Perhaps you should try some spelling variations:
chiet tach » chieu sach
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
cua thong » cua thuong, cua khong, cua tong
hang taiu » hang dau, han tai, hang hai
tung cua » trung cua, tuong cua, dung cua
cong ban » cong bang, cong san, cong tan
hang tai » hang va, dung tai

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) or (chiet tach)) - thanh tung cua thong cong ban ((hang taiu) or (hang tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chiet tach)) - thanh tung cua thong cong ban ((hang taiu) OR (hang tai)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chiet tach)) - thanh tung cua thong cong ban ((hang taiu) or (hang tai))*.