Perhaps you should try some spelling variations:
danh dai » danh dau, danh di, danh sai
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
luc va » duc va, tuc va
loc va » hoc va
ve bao » te bao, va bao

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

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