Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
cam duc » cam xuc, cao duc, pham duc
thai ky » thoi ky, than ky, thai ly
xay hoi » tay hoi, cay phoi, gay thoi
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua
tai ky » trai ky, sai ky, dai ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((tai ky) OR (thai ky)) dang ((xay hoi) or (xa hoi)). hieu ve cam duc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((tai ky) OR (thai ky)) dang ((xay hoi) OR (xa hoi)). hieu ve cam duc va danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((tai ky) OR (thai ky)) dang ((xay hoi) or (xa hoi)). hieu ve cam duc va danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((tai ky) OR (thai ky)) dang ((xay hoi) or (xa hoi)). hieu ve cam duc va danh vi cua tre*.