Perhaps you should try some spelling variations:
hanh chat » hanh cat, hanh cham, thanh cham
chat cua » nhat cua, chat va, chat huu
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
su sach » vu sach
nang ma » sang ma, nang cao, mang may
so sach » so sanh, bo sach, co sach
tang ma » mang may, tang van
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va

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) or (so sach)) tu ((nang ma) OR (tang ma)) hoa. hieu va cam luc va hanh chat cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) tu ((nang ma) OR (tang ma)) hoa. hieu va cam luc va hanh chat cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) tu ((nang ma) OR (tang ma)) hoa. hieu va cam luc va hanh chat cua vat".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) tu ((nang ma) OR (tang ma)) hoa. hieu va cam luc va hanh chat cua vat*.