Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
dung trung » dung trong, quang trung, dung ung
thanh toan » thanh hoa, thanh san, tinh toan
hieu xanh » hieu manh, hieu nganh, dieu hanh
trung cap » truong cao
toan cau » toan cao, toan ban, toan tap

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 (chieu xanh)) - hanh ((trung cap) or (trung tam)) dung trung thanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - hanh ((trung cap) OR (trung tam)) dung trung thanh toan cau.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (chieu xanh)) - hanh ((trung cap) or (trung tam)) dung trung thanh toan cau*.