Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
van nguyen » toan nguyen, tran nguyen, xuan nguyen
trang cua » tranh cua, tang cua, trung cua
van tuyen » va tuyen, van chuyen, xuan tuyen
ban cong » bang cong, van cong, phan cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (chieu xanh)) - hanh trang cua ban cong ((van tuyen) OR (van nguyen)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - hanh trang cua ban cong ((van tuyen) OR (van nguyen)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (chieu xanh)) - hanh trang cua ban cong ((van tuyen) OR (van nguyen)) tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu xanh)) - hanh trang cua ban cong ((van tuyen) OR (van nguyen)) tap*.