Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
ve cham » va cham, ve chat, vu cham
luu tre » luu tru, cuu tre, luy tre
va cam » va cham, va cac, va cao
xuc va » tuc va, luc va, xac va
vi luu » vi lua

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