Perhaps you should try some spelling variations:
cac thoi » cac toi, cac hop, cac tro
van hanh » van thanh, ban hanh, van anh
cac phoi » cac khoi, cap phoi, cay phoi
tu cach » tu cac
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang, ky danh
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 cach) or (su sach)) ky dang ((cac phoi) or (cac thoi)). lieu va cac xuc van hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky dang ((cac phoi) OR (cac thoi)). lieu va cac xuc van hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky dang ((cac phoi) or (cac thoi)). lieu va cac xuc van hanh di cua tre*.