Perhaps you should try some spelling variations:
thien nhanh » thien thanh, thien chanh, thien nhan
nhung huong » nhung phuong, nhung tuong, nhung cong
hien nhanh » thien thanh, tien thanh, dien thanh
hien hanh » dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tang cua » mang cua, hang cua, tang luan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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 nhanh) or (thien nhanh))) or (hien hanh)) - hanh tang cua nhung huong dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien nhanh) OR (thien nhanh))) OR (hien hanh)) - hanh tang cua nhung huong dan than tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien nhanh) or (thien nhanh))) or (hien hanh)) - hanh tang cua nhung huong dan than tap*.