Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
truc va » thuc va, thuc vat, trung va
hai cuu » hai cua, hai chu, hai cuc
cuu tre » cua tre, cau tren, cau treo
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ((mai hoi) or (ma hoa)). hieu ve chat ((luc va) or (truc va)) hanh hai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((mai hoi) OR (ma hoa)). hieu ve chat ((luc va) OR (truc va)) hanh hai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((mai hoi) or (ma hoa)). hieu ve chat ((luc va) or (truc va)) hanh hai cuu tre*.