Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
sach kem » hanh kem
vai cuu » vai cua
va hanh » van hanh, va thanh, va danh
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
hieu ve » hieu van
sang ma » tang ma, nang ma, sang tao
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach kem) or (sach ty)) sang ma hoi. ((hieu ve) or (hieu va)) cam duc va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach kem) OR (sach ty)) sang ma hoi. ((hieu ve) OR (hieu va)) cam duc va hanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: su ((sach kem) or (sach ty)) sang ma hoi. ((hieu ve) or (hieu va)) cam duc va hanh vai cuu tre*.