Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van khanh » van hanh, van anh, van phan
van tren » van tien, quan tren, van trung
thai van » thi van, thanh van, thai vung
hieu van » hieu va, thien van, lieu va
te sach » toc sach
cac xuc » cam xuc, cac nuoc, chat xuc
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
van cac » van hac, van cau, van bac
co hai » co dai, co hoi, o hai
o hoi » co hoi, o hoc, o hai

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 ((o hoi) or (co hai)). hieu van cac xuc ((van khanh) or (van thanh)) thai van tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ((o hoi) OR (co hai)). hieu van cac xuc ((van khanh) OR (van thanh)) thai van tren.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ((o hoi) or (co hai)). hieu van cac xuc ((van khanh) or (van thanh)) thai van tren*.