Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
va doanh » van doanh, vay doanh, va danh
chat huu » pham huu
tai cuu » tai cuc, tai buu, tai cua
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y ((sang ma) or (nang ma)) hoi. hieu ve ((cac xuc) or (chat huu)) va doanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y ((sang ma) OR (nang ma)) hoi. hieu ve ((cac xuc) OR (chat huu)) va doanh tai cuu tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach y ((sang ma) or (nang ma)) hoi. hieu ve ((cac xuc) or (chat huu)) va doanh tai cuu tre*.