Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
thanh trung » thanh tung
hanh trang » hanh trinh, minh trang, tinh trang
hien hanh » dieu hanh
cua nhung » va nhung
duong van » duong va, luong va, dang van
luan hoan » luan van
van luan » van quan, van tuan, von luan

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 trang) OR (thanh trung))) or (canh tranh)) cua nhung duong van luan hoan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - ((((hanh trang) OR (thanh trung))) OR (canh tranh)) cua nhung duong van luan hoan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hanh - ((((hanh trang) OR (thanh trung))) or (canh tranh)) cua nhung duong van luan hoan".
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - ((((hanh trang) OR (thanh trung))) or (canh tranh)) cua nhung duong van luan hoan*.