Perhaps you should try some spelling variations:
thuong phuong » truong phuong, thong phuong, thong thuong
chieu xanh » chieu sach, chieu sang, chieu tinh
phuong san » phuong lan, phuong tran, phuong bang
hieu manh » hieu nganh, dieu hanh, hien hanh
trung cap » truong cao
san chat » van chat, san chay, ban chat
chat cau » chat cam, chat cao, chat va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (hieu manh)) - hanh ((trung cap) OR (trung tam)) thuong phuong san chat cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hieu manh)) - hanh ((trung cap) OR (trung tam)) thuong phuong san chat cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (hieu manh)) - hanh ((trung cap) OR (trung tam)) thuong phuong san chat cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hieu manh)) - hanh ((trung cap) OR (trung tam)) thuong phuong san chat cau*.