Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
nhung cau » chung cu, nhung bai, nhu cau
cong ban » cong bang, cong san, cong tan
hang cau » hang dau, hang ca, nang cao

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 (chieu sach)) - thanh trung cap thong cong ban ((hang cau) OR (nhung cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - thanh trung cap thong cong ban ((hang cau) OR (nhung cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sach)) - thanh trung cap thong cong ban ((hang cau) OR (nhung cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - thanh trung cap thong cong ban ((hang cau) OR (nhung cau))*.