Perhaps you should try some spelling variations:
te sach » toc sach
hai cua » thai cua, hoi cua, lai cua
ban anh » ban hanh, ban banh, ban danh
xuc ban » duc ban, cuc ban, quoc ban
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va cao » va cac, va co, va dao
va cam » va cham, va cac, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang xa hoi. hieu ((va cam) or (va cao)) xuc ban anh ((hai cua) OR (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. hieu ((va cam) OR (va cao)) xuc ban anh ((hai cua) OR (dai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. hieu ((va cam) or (va cao)) xuc ban anh ((hai cua) OR (dai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ((va cam) or (va cao)) xuc ban anh ((hai cua) OR (dai cua)) tre*.