Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cham duc » pham duc, cham soc, pham duy
va thanh » gia thanh, ban thanh, va tinh
su sach » vu sach
so sach » so sanh, bo sach, co sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
tai cua » thai cua, tai cuc, tri cua
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) or (so sach)) ty nang xa hoi. hieu va cham duc va thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ty nang xa hoi. hieu va cham duc va thanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ty nang xa hoi. hieu va cham duc va thanh tai cua tre*.