Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
doan van » doan va, hoang van, luan van
luc vay » luc va, luoc van
van cua » vang cua, ban cua, dan cua
luc van » luoc van, luu van, duc van
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thuat sach)) y nang x hoi. hieu ve cham ((luc vay) OR (luc van)) doan van cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thuat sach)) y nang x hoi. hieu ve cham ((luc vay) OR (luc van)) doan van cua tre*.