Perhaps you should try some spelling variations:
chung chuan » chung khoan, chung cua, chung nhan
thanh chung » thanh chuong, thanh hung, thanh phuong
chuan dung » chan dung, chuyen dung, chua dong
dung cong » dung trong
cong nang » cong ngang, cong lang, cong nong
nang phan » nang phat, nang thanh, nang quan
doc hieu » hoc thieu, hoc hien
phan lap » phan dau

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 - thanh chung chuan dung cong nang phan lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) sach - thanh chung chuan dung cong nang phan lap".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (toc thieu)) sach - thanh chung chuan dung cong nang phan lap*.