Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, bai cua
lai cua » dai cua, hai cua, lai chau
ve am » va am

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 ky lang xa hoi. hieu ve am ((thuc dan) or (thuc vat)) hanh ((vai cua) OR (lai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky lang xa hoi. hieu ve am ((thuc dan) OR (thuc vat)) hanh ((vai cua) OR (lai cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky lang xa hoi. hieu ve am ((thuc dan) or (thuc vat)) hanh ((vai cua) OR (lai cua)) triet*".