Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
dan nhan » danh nhan, dan chan, van nhan
van phan » van phong, van thanh, luan phan
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 nhung cong ((dan nhan) or (van phan)) cach~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh tung cua nhung cong ((dan nhan) OR (van phan)) cach.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh tung cua nhung cong ((dan nhan) or (van phan)) cach*.