Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cac tac » cac toc, cac bac, cac dac
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach vay
tac va » tac da, tac xa, tuc va
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((((sach v) OR (sach y))) OR (sach 2)) nang xa hoi. hieu va cac tac va hanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu ((((sach v) or (sach y))) or (sach 2)) nang xa hoi. hieu va cac tac va hanh di cua tre*.