Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
vien nganh » vien thanh
hanh trang » thanh trung, hanh trinh, minh trang
hieu xanh » chieu xanh, hieu manh, hieu nganh
cua nhung » va nhung
dan toan » van toan, dan than, manh toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (vien nganh)) - ((hanh trang) OR (canh tranh)) cua nhung huong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (vien nganh)) - ((hanh trang) OR (canh tranh)) cua nhung huong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (vien nganh)) - ((hanh trang) OR (canh tranh)) cua nhung huong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (vien nganh)) - ((hanh trang) OR (canh tranh)) cua nhung huong dan toan ban*.