Perhaps you should try some spelling variations:
dang cay » dang xay, dang ca, dang cac
dong cac » duong cac, dong bac, dung cac
tu cach » tu cac
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di 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 (vu bach)) ky ((dang cay) or (dong cac)) phoi. hieu va cac xuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (vu bach)) ky ((dang cay) OR (dong cac)) phoi. hieu va cac xuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (vu bach)) ky ((dang cay) or (dong cac)) phoi. hieu va cac xuc va hanh vi cua tre*.