Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
hanh di » hanh vi, hanh de, hang di
luc van » luoc van, luu van, duc van
van cau » van dau, van hau, van chat
van cam » van nam, van lam, van dam
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
di cuu » di cau, di cua, dinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. hieu ((van cam) or (van cau)) ((xuc ban) or (luc van)) hanh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ((van cam) OR (van cau)) ((xuc ban) OR (luc van)) hanh di cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ((van cam) or (van cau)) ((xuc ban) or (luc van)) hanh di cuu tre*.