Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
sach ty » sach y, sach tu, sach thu
van hac » van hoc, van ha, van hai
hac xuc » chat xuc
va danh » va dinh, va dan, va hanh
tai cua » thai cua, tai cuc, dai cua
te sach » toc sach
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty ((nang xa) or (lang xa)) hoi. hieu van hac xuc va danh ((tai cua) OR (tri cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (lang xa)) hoi. hieu van hac xuc va danh ((tai cua) OR (tri cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) or (lang xa)) hoi. hieu van hac xuc va danh ((tai cua) OR (tri cua)) triet".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) or (lang xa)) hoi. hieu van hac xuc va danh ((tai cua) OR (tri cua)) triet*.