Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
thanh tung » thanh cong
hien hanh » dieu hanh
cua nhung » va nhung
nhung ong » nhung cong, nhung bong, nhung chong
sach toan » hach toan, sach tranh, hoach toan
tung cua » trung cua, tuong cua, dung cua
ong sach » cong sach, song sach, duong sach
toan ban » van ban

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 hanh) or (hien nhanh)) - thanh tung cua nhung ong sach toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hanh) OR (hien nhanh)) - thanh tung cua nhung ong sach toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (hien nhanh)) - thanh tung cua nhung ong sach toan ban*.