Perhaps you should try some spelling variations:
danh kien » dinh kien, danh viet, linh kien
sach va » sach ha, sach dao, sach nha
sach xa » sach dao, sach nha, sach bai
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
kien cu » dien cu, kien co, khien cua
soc va » hoc va, loc va, doc va
cu te » cua te, tu te, cu de

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 va) OR (sach xa)) nang xa hoi. hieu ve cham ((soc va) or (duc va)) danh kien cu te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach va) OR (sach xa)) nang xa hoi. hieu ve cham ((soc va) OR (duc va)) danh kien cu te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach va) OR (sach xa)) nang xa hoi. hieu ve cham ((soc va) or (duc va)) danh kien cu te".
• Adding a wildcard symbol may retrieve word variants: te ((sach va) OR (sach xa)) nang xa hoi. hieu ve cham ((soc va) or (duc va)) danh kien cu te*.