Perhaps you should try some spelling variations:
gianh lai » gian lan
hieu van » hieu va, thien van, lieu va
toc sach » hoc sach, doc sach, thuoc sach
va gianh » va gian, van giang, va giai
lai cua » dai cua, hai cua, lai chau
cao suc » cao su, cao duc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
suc va » duc va, tuc va, luc 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: ((te sach) OR (toc sach)) ky nang xa hoi. ((hieu ve) OR (hieu van)) cao suc va gianh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) cao suc va gianh lai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ky nang xa hoi. ((hieu ve) or (hieu van)) cao suc va gianh lai cua tre*.