Perhaps you should try some spelling variations:
van khanh » van thanh, van hanh, van anh
thai cuu » thai cua, thi cuc, thai xu
su sach » so sach, vu sach
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
cso hai » co hai, cho hai, cao khai
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
so hai » son hai, su hai, so ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang ((so hai) or (cso hai)). hieu ve cac xuc van khanh ((thai cuu) or (tai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ((so hai) OR (cso hai)). hieu ve cac xuc van khanh ((thai cuu) OR (tai cuc)) tre.
• Adding a wildcard symbol may retrieve word variants: su sach y nang ((so hai) or (cso hai)). hieu ve cac xuc van khanh ((thai cuu) or (tai cuc)) tre*.