Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
hieu ve » hieu va, hieu van
xuc ban » cuc ban, quoc ban, xuat ban
duc ban » duc tan, duc van, dua ban
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
me hoi » le hoi
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 sac ky nang ((me hoi) or (ma hoa)). hieu ve cam ((xuc ban) or (duc ban)) hanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((me hoi) OR (ma hoa)). hieu ve cam ((xuc ban) OR (duc ban)) hanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((me hoi) or (ma hoa)). hieu ve cam ((xuc ban) or (duc ban)) hanh hai cua tre*.