Perhaps you should try some spelling variations:
danh doi » danh di, thanh doi, dung doi
doi cua » dai cua, hoi cua, dong cua
va danh » va dinh, va dan, va hanh
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
sach v » sach va, sach y, sach vay
soc va » hoc va, loc va, doc va
sach 2 » sach y

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: te ((sach v) OR (sach 2)) nang xa hoi. ((hieu ve) OR (hieu va)) cham soc va danh doi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach v) or (sach 2)) nang xa hoi. ((hieu ve) OR (hieu va)) cham soc va danh doi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te ((sach v) or (sach 2)) nang xa hoi. ((hieu ve) OR (hieu va)) cham soc va danh doi cua tre*.