Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » lieu tinh, chau tinh, kieu tinh
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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 tinh) or (trieu tinh))) or (chieu sach)) - thanh trung tuan thong cong tan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu tinh) OR (trieu tinh))) OR (chieu sach)) - thanh trung tuan thong cong tan than cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu tinh) or (trieu tinh))) or (chieu sach)) - thanh trung tuan thong cong tan than cau*.