Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
dang van » hoang van, hang va
te sach » toc sach
cam luc » cam xuc, cau luc
hai cua » thai cua, dai cua, hoi cua
va hanh » van hanh, va danh, ban hanh
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
va cam » va cham, va cac, va cao

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