Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
toc sach » hoc sach, doc sach, thuoc sach
bao thuc » cao thuoc, am thuc, va thuc
va thanh » gia thanh, ban thanh, va tinh
va triet » va thiet, va trien, ve triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
ve bao » te bao, va bao
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach v nang xa hoi. hieu ve bao thuc ((va danh) or (va thanh)) di ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach v nang xa hoi. hieu ve bao thuc ((va danh) OR (va thanh)) di ((cua triet) OR (va triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach v nang xa hoi. hieu ve bao thuc ((va danh) or (va thanh)) di ((cua triet) OR (va triet))*".