Perhaps you should try some spelling variations:
thien van » thi van
cua dang » cua cong, cua ban
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, lieu va, hieu ve
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
dan vai » dan va, dan tai, dan vat
vu dang » su dang, vu quang
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau
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 ((vu dang) or (cua dang)) o hoi. ((hieu van) or (thien van)) chat xuc va dan vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((vu dang) OR (cua dang)) o hoi. ((hieu van) OR (thien van)) chat xuc va dan vai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((vu dang) or (cua dang)) o hoi. ((hieu van) or (thien van)) chat xuc va dan vai cua tre*.