Perhaps you should try some spelling variations:
gianh lai » gian lan
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
va gianh » va gian, van giang, va giai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
cao duc » dao duc, cao suc, tao duoc
lai cua » dai cua, hai cua, lai chau

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 ky nang xa hoi. ((hieu ve) OR (hieu van)) ((cao duc) OR (giao duc)) va gianh lai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. ((hieu ve) or (hieu van)) ((cao duc) OR (giao duc)) va gianh lai cua triet~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. ((hieu ve) or (hieu van)) ((cao duc) OR (giao duc)) va gianh lai cua triet*.