Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
sach thue » sach thieu, sach tham, cach thuc
su triet » su viet, su tien, ve triet
sach thu » sach thieu, sach tham, cach thuc
trong ma » trong mau, trong ca, trong va
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
ve nham » ve nha, ve cham
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach thue) OR (sach thu)) trong ma hoi. hieu ve nham thuc va hanh vi ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach thue) OR (sach thu)) trong ma hoi. hieu ve nham thuc va hanh vi ((cua tre) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach thue) OR (sach thu)) trong ma hoi. hieu ve nham thuc va hanh vi ((cua tre) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: su ((sach thue) OR (sach thu)) trong ma hoi. hieu ve nham thuc va hanh vi ((cua tre) or (su triet))*.