Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
te sach » toc sach
cam cuc » cham cuu, pham cuc
ban ban » ban banh, van ban, can ban
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua
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) or (te sach)) ky nang x hoi. hieu van ((cam cuc) or (cam xuc)) ban ban va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky nang x hoi. hieu van ((cam cuc) OR (cam xuc)) ban ban va cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky nang x hoi. hieu van ((cam cuc) or (cam xuc)) ban ban va cua tre*.