Perhaps you should try some spelling variations:
thanh dong » thanh duong, thanh cong, hanh dong
doi chieu » doc hieu, doi chi, mot chieu
hang cong » dang cong, hang nong, bang cong
cong nang » cong ngang, cong lang, cong nong
nang phan » nang phat, nang thanh, nang quan
phan dau » phan tu, hang dau
dong va » dung va, dong ha, luong va
va hang » van hang, va nang, va lang

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 dong va hang cong nang phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (toc thieu)) sach - thanh dong va hang cong nang phan dau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (toc thieu)) sach - thanh dong va hang cong nang phan dau*.