Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
luoc van » luoc can, luoc va, luc van
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, dua tren
ve cam » ve cham, ve cac, va cam

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