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

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