Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
ban thanh » ban hanh, ban hang
thanh ve » hanh ve, thanh va, thanh vien
nang xa » nang x, lang xa, nang ma
luc ban » duc ban, cuc ban, luc bat
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cao » va cac, va dao, va bao
ve cua » le cua, de cua, te cua
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y nang xa hoi. hieu ((va cao) OR (va co)) luc ban thanh ve cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang xa hoi. hieu ((va cao) OR (va co)) luc ban thanh ve cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang xa hoi. hieu ((va cao) OR (va co)) luc ban thanh ve cua tre*.