Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
xuc van » vuc van, xuc ban, thuc van
luc van » luoc van, luu van, luc va
duc van » duc va, duc tan, duc manh
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu ve cam ((xuc van) or (((luc van) or (duc van)))) thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang x hoi. hieu ve cam ((xuc van) OR (((luc van) OR (duc van)))) thanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach y nang x hoi. hieu ve cam ((xuc van) or (((luc van) or (duc van)))) thanh hai cua tre*.