Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
hieu van » hieu va, thien van, lieu va
thai cua » than cua, tai cuc, tri cua
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
hac xuc » chat xuc
van hac » van hoc, van ha, van hai
su sach » vu sach
ty nang » ky nang, ty hang, ly nang
so sach » so sanh, bo sach, co sach
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) or (ty xang)) xa hoi. hieu van hac xuc van hanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ((ty nang) OR (ty xang)) xa hoi. hieu van hac xuc van hanh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ((ty nang) or (ty xang)) xa hoi. hieu van hac xuc van hanh thai cua tre*.