Perhaps you should try some spelling variations:
chieu chien » thien chien
hieu hien » bieu hien, dieu hien, dieu khien
va thanh » ban thanh, va tinh, le thanh
lap cua » lai cua, tap cua, lam cua
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
cac lo » cac lop, cac co, cac bo
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.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang x hoi. ((hieu hien) or (chieu chien)) cac lo ((va thanh) or (gia thanh)) lap cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang x hoi. ((hieu hien) OR (chieu chien)) cac lo ((va thanh) OR (gia thanh)) lap cua te.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang x hoi. ((hieu hien) or (chieu chien)) cac lo ((va thanh) or (gia thanh)) lap cua te*.