Perhaps you should try some spelling variations:
cham doc » cham soc, chat doc, chau doc
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
dan dai » dat dai, can dai, dan dat
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach vay
doc va » duoc va, hoc va, duc va
va dan » ca dan, va dao, va dau

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