Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trang » thanh trung, canh tranh, hanh trinh
hieu xanh » chieu xanh, hieu manh, dieu hanh
trang cua » tranh cua, tang cua, trung cua
cong cong » cong dong, trong cong, dung cong
cong lang » cong vang, cong luong, cong quang
thang cau » thong cau, thanh chau, nhung cau
hang cau » hang dau, hang ca, nhung cau

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