Perhaps you should try some spelling variations:
hanh dieu » han dieu, hinh dieu, hoang dieu
dieu cua » dieu tra
dang cay » dang xay, dang ca, dang cac
cay phoi » cap phoi, tay hoi, cay cho
luoc can » luc canh, hoc can, luoc dai
cua tre » cua te, cuu tre, cua triet
luoc va » nuoc va, duoc va, loc va
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
te sac » te sach, te san
te cac » tu cac, te cao, de cac
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te cac)) ky dang cay phoi. hieu ve cac ((luoc can) or (luoc va)) hanh dieu cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te cac)) ky dang cay phoi. hieu ve cac ((luoc can) OR (luoc va)) hanh dieu cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te cac)) ky dang cay phoi. hieu ve cac ((luoc can) or (luoc va)) hanh dieu cua tre*.