Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, hinh tai
su sach » so sach, vu sach
thuc va » thuc vat, thuc dan, thuc day
han tai » hang tai, nhan tai, van tai
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
tuc va » truc va, tuc xa, duc va
va cao » va cac, va co, va dao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. lieu va cao ((tuc va) OR (thuc va)) ((hanh tai) OR (han tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. lieu va cao ((tuc va) or (thuc va)) ((hanh tai) OR (han tai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. lieu va cao ((tuc va) or (thuc va)) ((hanh tai) OR (han tai)) cua tre*.