Perhaps you should try some spelling variations:
trung thanh » truong thanh
trung tuan » trung tam, tran tuan, truong thanh
nhung cong » dung cong, thong cong, hang cong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
ho chinh » cho chinh, hoa chinh, do chinh
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chinh) or (hoc chinh)) sach - thanh ((trung tuan) OR (trung thanh)) nhung cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chinh) OR (hoc chinh)) sach - thanh ((trung tuan) OR (trung thanh)) nhung cong dan chan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chinh) or (hoc chinh)) sach - thanh ((trung tuan) OR (trung thanh)) nhung cong dan chan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chinh) or (hoc chinh)) sach - thanh ((trung tuan) OR (trung thanh)) nhung cong dan chan cau*.