Perhaps you should try some spelling variations:
danh dien » dinh dien, danh kien, danh lien
dien cua » dieu cua, dien cuc, dien cu
hieu van » hieu va, thien van, lieu va
sach ly » sach y, sach ty, sach hay
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
sach lo » sach dao, sach doi, sach hoi
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sach ly) or (sach lo)) nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc va danh dien cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ly) OR (sach lo)) nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc va danh dien cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ly) or (sach lo)) nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc va danh dien cua tre".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ly) or (sach lo)) nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc va danh dien cua tre*.