Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
phuc van » thuc van, phuc va, chuc van
cua tre » cua te, cuu tre, dua tren
hanh de » hanh ve, hanh kem
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ve chau » ve cau, ve chat, le chau
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
phu van » chu van, phu san, nhu van

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 ty nang xa hoi. hieu ve chau ((phu van) OR (phuc van)) hanh de ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. hieu ve chau ((phu van) or (phuc van)) hanh de ((cua tre) OR (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ve chau ((phu van) or (phuc van)) hanh de ((cua tre) OR (cua triet))*.