Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
hanh trinh » hanh chinh
hien hanh » dieu hanh
cua nhung » va nhung
huong van » huong dan, duong van, hong van
van luan » van quan, van tuan, von luan
luan han » luan hoan, luan phan, luan van

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 - ((hanh trinh) or (canh tranh)) cua nhung huong van luan han~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - ((hanh trinh) OR (canh tranh)) cua nhung huong van luan han.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - ((hanh trinh) or (canh tranh)) cua nhung huong van luan han*.