Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
cho nang » cao nang, ho nang, che nang
cho hang » cho thanh, cho phan, thi hang
su sach » so sach, vu sach
cao duc » dao duc, cao suc, giao duc
vai cua » dai cua, hai cua, lai cua
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.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((cho nang) or (cho hang)) xa hoi. hieu ve ((cam duc) or (cao duc)) van thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((cho nang) OR (cho hang)) xa hoi. hieu ve ((cam duc) OR (cao duc)) van thanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ((cho nang) or (cho hang)) xa hoi. hieu ve ((cam duc) or (cao duc)) van thanh vai cua te*.