Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
sach ky » sac ky, sach ty, sach kem
cac lop » cac hop, cac loai
su tien » su kien, su hien, tu tieng
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
vai su » va su, van su, lai su
cac lo » cac co, cac bo, cac ho

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

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