Perhaps you should try some spelling variations:
kho tang » cao tang
vu sang » vua sang, vu dang, vu san
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, ky trong
ma hoi » mai hoi, xa hoi, me hoi
ve dat » de dat, va dat, ve dao
di cua » dai cua, doi cua, de cua
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sang ((ky tang) or (kho tang)) ((ma hoi) OR (ma hoa)). hieu ve dat nuoc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sang ((ky tang) OR (kho tang)) ((ma hoi) OR (ma hoa)). hieu ve dat nuoc va hanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sang ((ky tang) or (kho tang)) ((ma hoi) OR (ma hoa)). hieu ve dat nuoc va hanh di cua tre*".