Perhaps you should try some spelling variations:
va phuong » va thuong, cac phuong
xa huong » xa phuong, va huong, xa muong
bo sach » co sach, hoc sach
cam tuc » cam xuc, cam tu, nam thuc
doi cuu » doi cua, doi cuoc
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
ty nang » ky nang, ty hang, ly nang
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ((ty nang) or (ty xang)) x hoi. hieu va cam tuc ((xa huong) or (va phuong)) doi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ((ty nang) OR (ty xang)) x hoi. hieu va cam tuc ((xa huong) OR (va phuong)) doi cuu tre.
• Adding a wildcard symbol may retrieve word variants: bo sach ((ty nang) or (ty xang)) x hoi. hieu va cam tuc ((xa huong) or (va phuong)) doi cuu tre*.