Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
su sach » so sach
cao duc » dao duc, cao suc, giao duc
vai cua » dai cua, hai cua, lai cua
vu sach » vu bach, vu khach
lo vang » lo van, ly vang, hoa vang
vang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
cam duc » cam xuc, pham duc, nam duoc
cua te » cua tu

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