Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan nhung » quan nhung, tuan hung, thuat nhung
chu sach » cau sach, thu sach, chieu sach
hau sach » khau sach, cau sach, ham sach
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: theo ((chu sach) or (hau sach)) - thanh trung tuan nhung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sach) OR (hau sach)) - thanh trung tuan nhung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu sach) or (hau sach)) - thanh trung tuan nhung ((cong dan) or (cong san)) toan cau*.