Perhaps you should try some spelling variations:
trung thpt » truong thpt, trung thuc, trung nhat
doi chieu » doc hieu, doi chi, mot chieu
nhan dang » nhan dan, phan dang, tran dang
ha trung » he trung, ba trung, va trung
thpt dan » thuc dan, tho dan
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam
dang ha » dong ha, dung ha, lang ha

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 - nhan dang ha trung thpt dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - nhan dang ha trung thpt dan khan cap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sach - nhan dang ha trung thpt dan khan cap*.