Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
cua tre » cua te, cuu tre, cua triet
xanh di » danh di, vanh dai, xanh tai
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
mai hoi » dai hoi, lai hoi, mai doi
san ky » sang ky, van ky, dan ky
xuc va » tuc va, luc va, xac va
di cua » dai cua, doi cua, de cua
vu san » va san, vu ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu san ky tang ((mai hoi) or (mai khoi)). hieu ve cham ((xuc va) OR (duc va)) xanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu san ky tang ((mai hoi) OR (mai khoi)). hieu ve cham ((xuc va) OR (duc va)) xanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu san ky tang ((mai hoi) or (mai khoi)). hieu ve cham ((xuc va) OR (duc va)) xanh di cua tre*".