Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
lang cong » dang cong, bang cong, hang cong
cong nang » cong ngang, cong lang, cong nong
nang phan » nang phat, nang thanh, nang quan
phan cau » phan dau, phan cac, phan tu
cong va » dong va, cong ha, cong tac
va lang » va nang, hoa 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 cong va lang cong nang phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (toc thieu)) sach - thanh cong va lang cong nang phan cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (toc thieu)) sach - thanh cong va lang cong nang phan cau*.