Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dan khang » van khang, dan khanh, dao khang
thu nang » thi nang, thu hang, thu bang
khang vi » khang voi, hang vi, hang va
thuc dan » thuc hanh, hoc dan, thuc vat
sach thu » sach thue, sach thieu, sach tham
so sach » so sanh, bo sach, co sach
su tien » su kien, su hien, tu tieng
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach thu nang x hoi. hieu ((ve cam) OR (va cam)) thuc dan khang vi ((cua triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu nang x hoi. hieu ((ve cam) OR (va cam)) thuc dan khang vi ((cua triet) OR (su tien))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu nang x hoi. hieu ((ve cam) OR (va cam)) thuc dan khang vi ((cua triet) or (su tien))*".