Perhaps you should try some spelling variations:
pham hoai » pham hoa, pham hoang, pham khoa
cau treo » cau theo, cau tren, cau triet
cham hoi » cham voi, cham h'roi, chai thoi
hieu va » lieu va, hieu qua
ty nang » ky nang, ty hang, ly nang
va dinh » van dinh, va kinh, va tinh
dinh di » dinh du, dinh vi, danh di
te sach » toc sach
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 hoi) OR (pham hoai)) va dinh di cau treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) or (ty xang)) xa hoi. hieu va ((cham hoi) OR (pham hoai)) va dinh di cau treo~".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (ty xang)) xa hoi. hieu va ((cham hoi) OR (pham hoai)) va dinh di cau treo*.