Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
tong cong » trong cong, cong cong, dung cong
tung cua » trung cua, tuong cua, dung cua
cua tong » cua cong, cua dong, cua nong
dan than » dan chan, dan toan, dang thanh
van than » van thanh, van thang, van tuan
ban than » ban thanh, van thanh, ban hang
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 tung cua tong cong ((((dan than) OR (van than))) or (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh tung cua tong cong ((((dan than) OR (van than))) OR (ban than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh tung cua tong cong ((((dan than) OR (van than))) or (ban than)) cau".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh tung cua tong cong ((((dan than) OR (van than))) or (ban than)) cau*.