Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, te sach, tu cach
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, xuc ban
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ky nang xa hoi. ((hieu ve) or (hieu qua)) cham xuc van hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang xa hoi. ((hieu ve) OR (hieu qua)) cham xuc van hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang xa hoi. ((hieu ve) or (hieu qua)) cham xuc van hanh di cua tre*.