Perhaps you should try some spelling variations:
thien van » thi van
cua viet » ca viet, hoa viet, cua vat
danh dai » danh dau, danh di, danh sai
sach kem » hanh kem
van chat » cao chat
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
soc va » hoc va, loc va, goc va
doc va » duoc va, hoc va, duc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach kem) or (sac ky)) nang xa hoi. thien van chat ((soc va) OR (doc va)) danh dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sac ky)) nang xa hoi. thien van chat ((soc va) OR (doc va)) danh dai cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach kem) or (sac ky)) nang xa hoi. thien van chat ((soc va) OR (doc va)) danh dai cua viet*".