Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
hien hanh » dieu hanh
tong cong » trong cong, cong cong, dung cong
tranh va » tranh van, trang va, trinh va
cong van » cong vang, cong san, song van
van quan » van ban
va tong » va thong, va tuong, va trong
quan ha » quan he

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 (hien hanh)) - canh tranh va tong cong van quan ha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (hien hanh)) - canh tranh va tong cong van quan ha.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (hien hanh)) - canh tranh va tong cong van quan ha*.