Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
cau treo » cau theo, cau tren, cau triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
thuc xa » thuc xay, tuc xa, thuc va
xa hanh » xa thanh, xa khanh, va hanh
hanh va » hang va, hanh vi
y nang » ky nang, ly nang, v nang
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach y nang xa hoi. ((hieu ve) or (hieu van)) nam thuc xa hanh va cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach y nang xa hoi. ((hieu ve) OR (hieu van)) nam thuc xa hanh va cau treo.
• Adding a wildcard symbol may retrieve word variants: hoc sach y nang xa hoi. ((hieu ve) or (hieu van)) nam thuc xa hanh va cau treo*.