Perhaps you should try some spelling variations:
su sach » so sach, vu sach
va doan » va doanh, van doan, va dan
doan vi » doan va, don vi, doan thi
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
x hoi » o hoi, x ho, 5 hoi

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