Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
thanh vi » thanh va, thanh ve, nhanh vi
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet

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 ky nang xa hoi. lieu va cham tuc xa ((thanh vi) or (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. lieu va cham tuc xa ((thanh vi) OR (hanh vi)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. lieu va cham tuc xa ((thanh vi) or (hanh vi)) cua tre*.