Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
phan dat » phan dau, phan dai, phan day
dat dung » dan dung, vat dung, da dung
cong thu » cong thuc, cuong thu, hong thu
van phat » va phat, van chat, van phan
phat cap » phat am, phan cac, phan cau
thu van » thuc van, thuy van, tu van

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 - phan dat dung cong thu van phat cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - phan dat dung cong thu van phat cap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sach - phan dat dung cong thu van phat cap*.