Perhaps you should try some spelling variations:
hanh chat » hanh cat, hanh cham, thanh cham
chat cua » nhat cua, chat va, chat huu
su sach » so sach
vu sach » vu bach, vu khach
tu nang » tru nang, tu nong, tu nano
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac luc » cau luc, coc luc, cac nuoc
va hanh » van hanh, va thanh, va danh
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 (vu sach)) tu nang ma hoa. hieu va cac luc va hanh chat cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) tu nang ma hoa. hieu va cac luc va hanh chat cua vat".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) tu nang ma hoa. hieu va cac luc va hanh chat cua vat*.