Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
hanh hanh » hanh han, xanh hanh, nhanh thanh
cong danh » cuong danh, cong dan, cong thanh
danh phap » dinh phap, ban phap, danh nhan
phap cau » phan cau, pha cau, phap ca
hanh va » hang va, hanh vi

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)) - hanh hanh va nhung cong danh phap cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien hanh) OR (hien nhanh)) - hanh hanh va nhung cong danh phap cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (hien nhanh)) - hanh hanh va nhung cong danh phap cau*.