Perhaps you should try some spelling variations:
trung thanh » truong thanh
thien hach » thien thanh, hien hanh
trung tuan » trung tam, tran tuan, truong thanh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
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: hoc thien hach - thanh ((trung tuan) or (trung thanh)) nhung cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh ((trung tuan) OR (trung thanh)) nhung cong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh ((trung tuan) or (trung thanh)) nhung cong dan chan cau*.