Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach van » sach han, sach va, bach van
hieu van » hieu va, thien van, lieu va
thuc van » thuc vat, thuc va, thuc hanh
thuc dan » thuc hanh, hoc dan, thuc vat
vu sach » vu bach, su sach, vu khach
nang xa » lang xa, nang ma, mang xa
van am » van nam, van lam, van dam
vi cua » vai cua, di cua

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

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