Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
va triet » va thiet, va trien, ve triet
va thanh » gia thanh, ban thanh, va tinh
hieu ve » hieu va, hieu van
cau loc » hau loc, cau hoc, cau luc
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
tu sach » thu sach, su sach, te sach
ve cau » ke cau, va cau, ve cac
loc va » hoc va, luc va
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. hieu ve cau loc va thanh vi ((cua tre) or (((va triet) or (cua viet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ve cau loc va thanh vi ((cua tre) OR (((va triet) OR (cua viet)))).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve cau loc va thanh vi ((cua tre) or (((va triet) or (cua viet))))*.