Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
cua truong » cua trung, xuan truong, xa truong
tran chau » tranh chap, tran huu
cong tan » cong tac, cong san, cong thanh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu xanh) OR (chieu xanh)) - hanh tranh ((cua truong) OR (cac truong)) cong tan tran chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu xanh) or (chieu xanh)) - hanh tranh ((cua truong) OR (cac truong)) cong tan tran chau~".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu xanh) or (chieu xanh)) - hanh tranh ((cua truong) OR (cac truong)) cong tan tran chau*.