Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
hanh trang » thanh trung, hanh trinh, minh trang
cua nhung » va nhung
duong van » duong va, luong va, dang van
luan hoan » luan van
hoc dieu » hoc thieu, hoc hien
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 dieu hanh - ((hanh trang) or (canh tranh)) cua nhung duong van luan hoan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - ((hanh trang) OR (canh tranh)) cua nhung duong van luan hoan.
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - ((hanh trang) or (canh tranh)) cua nhung duong van luan hoan*.