Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
toc sach » hoc sach, doc sach, thuoc sach
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
ty nang » ky nang, ty hang, ly nang
soc va » hoc va, loc va, doc va
di cau » da cau, diem cau

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) OR (toc sach)) ((ty nang) or (ty xang)) xa hoi. hieu va cham soc va hanh di cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ((ty nang) OR (ty xang)) xa hoi. hieu va cham soc va hanh di cau treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ((ty nang) or (ty xang)) xa hoi. hieu va cham soc va hanh di cau treo*".