Perhaps you should try some spelling variations:
danh lai » danh sai, gianh lai, dinh lam
sang mai » sang ma, sang tai, lang mai
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cua triet, dua tren
va danh » va dinh, va dan, va hanh
cuu tre » cau tren, cau treo
sach ky » sac ky, sach ty, sach kem
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) or (sach y)) sang mai hoi. hieu va cam duc va danh lai ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) sang mai hoi. hieu va cam duc va danh lai ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sach y)) sang mai hoi. hieu va cam duc va danh lai ((cua tre) OR (cuu tre))*".