Perhaps you should try some spelling variations:
ngang phat » nhung phat, hang phat, nang phan
doi chieu » doc hieu, doi chi, mot chieu
nang hang » nang sang, hang hang, cang thang
nang phat » nang suat, van phat
ho chieu » theo chieu, hoc thieu, mot chieu
hang vat » hang va, dang vat, bang vat
vat dung » van dung, va dung, viet dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chieu)) sach - nang hang vat dung trong ((ngang phat) OR (nang phat)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - nang hang vat dung trong ((ngang phat) OR (nang phat)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) sach - nang hang vat dung trong ((ngang phat) OR (nang phat)) cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sach - nang hang vat dung trong ((ngang phat) OR (nang phat)) cau*.