Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
sach kem » hanh kem
va thanh » gia thanh, ban thanh, va tinh
nang xa » nang x, lang xa, nang ma
cac tuc » cac tu, cac tac, cac nuoc
cac toc » cac toi, cac nuoc, cac thoi
hai cua » thai cua, dai cua, hoi cua
cua su » qua su

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: su ((sach kem) OR (sach y)) nang xa hoi. lieu va ((cac tuc) OR (cac toc)) va thanh hai cua su~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach kem) or (sach y)) nang xa hoi. lieu va ((cac tuc) OR (cac toc)) va thanh hai cua su~".
• Adding a wildcard symbol may retrieve word variants: su ((sach kem) or (sach y)) nang xa hoi. lieu va ((cac tuc) OR (cac toc)) va thanh hai cua su*.