Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
su viet » so viet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac va
ve cam » ve cham, ve cac, va cam

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 ky nang xa hoi. hieu ve cam ((xuc va) or (tuc va)) hanh vai ((cua tre) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu ve cam ((xuc va) OR (tuc va)) hanh vai ((cua tre) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ve cam ((xuc va) or (tuc va)) hanh vai ((cua tre) or (su viet))*.