Perhaps you should try some spelling variations:
chua viet » chuan viet, cua viet, chu viet
thanh van » thanh san, thanh toan, thanh phan
van thanh » ban thanh, van tuan
van chua » va chua, van chia, van chu
soc van » hoc van, oc van, sac van
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
vu khac » vu kham, vu khanh, bui khac
y nang » ky nang, ly nang, v nang
so hai » son hai, su hai, so ha
o hai » co hai, o lai, _ hai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu khac)) y nang ((o hai) OR (so hai)). hieu ve cham soc van thanh van chua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (vu khac)) y nang ((o hai) OR (so hai)). hieu ve cham soc van thanh van chua viet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu khac)) y nang ((o hai) OR (so hai)). hieu ve cham soc van thanh van chua viet*.