Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
dao cuu » dao cau, dao chu, dao cua
dao huu » do huu
xuc va » tuc va, luc va, xac va
x hoi » xa hoi, o hoi, x ho

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