Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
vai cuu » vai cua
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
hieu ve » hieu van
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va

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 ((sang ma) OR (nang ma)) hoi. ((hieu ve) or (hieu va)) cam xuc va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((sang ma) OR (nang ma)) hoi. ((hieu ve) OR (hieu va)) cam xuc va hanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((sang ma) OR (nang ma)) hoi. ((hieu ve) or (hieu va)) cam xuc va hanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((sang ma) OR (nang ma)) hoi. ((hieu ve) or (hieu va)) cam xuc va hanh vai cuu tre*.