Perhaps you should try some spelling variations:
va thuat » ky thuat, ki thuat, va thuc
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
hang vi » hang va, hanh vi, hang di
cua tre » cua te, cuu tre, cua triet
va cham » va chat, va tham
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
xuc va » tuc va, luc va, xac va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu nang xa hoi. hieu ((va cham) or (va thuat)) ((xuc va) or (duc va)) hang vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nang xa hoi. hieu ((va cham) OR (va thuat)) ((xuc va) OR (duc va)) hang vi cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach tu nang xa hoi. hieu ((va cham) or (va thuat)) ((xuc va) or (duc va)) hang vi cua tre*.