Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trang » thanh trung, canh tranh, hanh trinh
nhung song » nhung cong, nhung bong, nhung chong
hieu xanh » chieu xanh, hieu manh, dieu hanh
trang hay » trang ha, trang huy, trang cham
hay nhung » tay nhung, tham nhung, thai nhung
song van » hoang van, trong van, duong van
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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 (hieu nganh)) - hanh trang hay nhung song van ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu nganh)) - hanh trang hay nhung song van ((than cau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (hieu nganh)) - hanh trang hay nhung song van ((than cau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (hieu nganh)) - hanh trang hay nhung song van ((than cau) or (than cap))*.