Perhaps you should try some spelling variations:
thieu sach » chieu sach, hieu cach, theo sach
thien hach » thien thanh, hien hanh
thanh tung » thanh cong
nhung bong » nhung cong, nhung bang, nhung chong
cua nhung » va nhung
van phong » van dong, hai phong
tung cua » trung cua, tuong cua, dung cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu sach) OR (thien hach)) - thanh tung cua nhung bong ((van ban) or (van phong)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sach) OR (thien hach)) - thanh tung cua nhung bong ((van ban) OR (van phong)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sach) OR (thien hach)) - thanh tung cua nhung bong ((van ban) or (van phong)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) OR (thien hach)) - thanh tung cua nhung bong ((van ban) or (van phong)) cau*.