Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh tai » thanh hai, thanh toan, doanh tai
dao duc » giao duc, tao duoc
tai cua » thai cua, tai cuc, tri cua
sach lo » sach dao, sach doi, sach hoi
hieu ve » hieu va, hieu van
sach ly » sach y, sach ty, sach hay
cam duc » cam xuc, cao duc, pham duc
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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: vu ((sach ly) OR (sach lo)) nang x hoi. hieu ve ((cam duc) OR (dao duc)) van thanh tai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ly) OR (sach lo)) nang x hoi. hieu ve ((cam duc) or (dao duc)) van thanh tai cua te~".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ly) OR (sach lo)) nang x hoi. hieu ve ((cam duc) or (dao duc)) van thanh tai cua te*.