Perhaps you should try some spelling variations:
cau theo » cau thi, cau tao
te sach » toc sach
ty nang » ky nang, ty hang, ly nang
hieu va » lieu va, hieu qua
va cham » va chat, va tham
soc va » loc va, doc va, goc va
dan di » danh di, dan da, dan de
di cau » da cau, diem cau

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 ((ty nang) OR (ty xang)) xa hoi. hieu va cham ((soc va) OR (hoc va)) dan di cau theo~.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (ty xang)) xa hoi. hieu va cham ((soc va) or (hoc va)) dan di cau theo*.