Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hien sach » dien sach, kien sach, thien hach
tung cua » trung cua, tuong cua, dung cua
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - thanh tung cua ((nhung cong) or (thong cong)) san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - thanh tung cua ((nhung cong) OR (thong cong)) san than cap.
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - thanh tung cua ((nhung cong) or (thong cong)) san than cap*.