Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
tai cua » tai cuc, tri cua, dai cua
sach ky » sac ky, sach y, sach ty
van lam » van nam
nang xa » nang x, lang xa, nang ma
tuc va » thuc va, truc va, tuc xa
luc va » duc va, loc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu van lam ((luc va) OR (tuc va)) hanh ((tai cua) OR (thai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu van lam ((luc va) or (tuc va)) hanh ((tai cua) OR (thai cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu van lam ((luc va) or (tuc va)) hanh ((tai cua) OR (thai cua)) tre*.