Perhaps you should try some spelling variations:
trung thanh » truong thanh
thanh phan » thanh pho, thanh san, thanh toan
nhan dang » nhan dan, phan dang, tran dang
phan phan » phap phan, phan phat, than phan
doc hieu » hoc thieu, hoc hien
ba trung » tai trung, nam trung, do trung
dang ba » dang bac, dang bai, dang ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) sach - nhan dang ba trung thanh phan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) sach - nhan dang ba trung thanh phan phan tu.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) sach - nhan dang ba trung thanh phan phan tu*.