Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
hai cua » thai cua, dai cua, hoi cua
bai cua » ban cua, dai cua, bai ca
vai cua » dai cua, lai cua, mai cua
xuc van » duc van, luc van, xuc ban
sach ty » sach y, sach tu, sach thu
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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 ty nang xa hoi. hieu van cau xuc van hanh ((((vai cua) OR (bai cua))) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu van cau xuc van hanh ((((vai cua) OR (bai cua))) OR (hai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. hieu van cau xuc van hanh ((((vai cua) OR (bai cua))) or (hai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu van cau xuc van hanh ((((vai cua) OR (bai cua))) or (hai cua)) tre*.