Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
doi chieu » doc hieu, doi chi, mot chieu
dang cong » dung cong
cong nhan » cong nhat, cong thanh, cong san
nhan phan » than phan, nhan chan, phan phan
dung van » duong van, dung va, dang van
van dang » van dong, van dung, van nang

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

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