Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach y, sach ty
vai cuu » vai cua
cao xuc » cam xuc, cao duc, cao suc
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
may hoi » may thoi, tay hoi, may hmi
cuu tre » cua tre, cau tren, cau treo
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sai ky)) mang ((may hoi) OR (mai hoi)). hieu va cao xuc va thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sai ky)) mang ((may hoi) OR (mai hoi)). hieu va cao xuc va thanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sai ky)) mang ((may hoi) OR (mai hoi)). hieu va cao xuc va thanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sai ky)) mang ((may hoi) OR (mai hoi)). hieu va cao xuc va thanh vai cuu tre*.