Perhaps you should try some spelling variations:
vuc nang » cuc nang, chuc nang, van nang
cac truc » cau truc, cac tru, cac trung
te sach » toc sach
danh ca » dan ca, doanh cua, danh cho
va danh » va dinh, va dan, va hanh
truc va » thuc va, thuc vat, trung va
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
vu nang » va nang, vu dang, v nang
ca cua » co cua

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 ((vu nang) OR (vuc nang)) ((le hoi) or (ma hoa)). hieu va cac truc va danh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((vu nang) OR (vuc nang)) ((le hoi) OR (ma hoa)). hieu va cac truc va danh ca cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((vu nang) OR (vuc nang)) ((le hoi) or (ma hoa)). hieu va cac truc va danh ca cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((vu nang) OR (vuc nang)) ((le hoi) or (ma hoa)). hieu va cac truc va danh ca cua tre*.