Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu tinh » trieu tinh, chieu tinh, thien tinh
khien tinh » thien tinh, khien thich, bien tinh
tam thong » tam thuong, tao thong, nam thong
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
can chau » canh chau, can cau, can chan

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 tinh) or (khien tinh)) - thanh trung tam thong ((cong ban) OR (cong tan)) can chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu tinh) OR (khien tinh)) - thanh trung tam thong ((cong ban) OR (cong tan)) can chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu tinh) or (khien tinh)) - thanh trung tam thong ((cong ban) OR (cong tan)) can chau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu tinh) or (khien tinh)) - thanh trung tam thong ((cong ban) OR (cong tan)) can chau*.