Perhaps you should try some spelling variations:
dang xay » dang van, van xay
nam thuc » nam thuoc, am thuc, nam thu
cua viet » ca viet, hoa viet, cua vat
vu sach » vu bach, su sach, vu khach
xay hoi » xa hoi, tay hoi, cay phoi
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
ca tren » cau tren, cu tren, la tren
y dang » ky dang, 2 dang, _ dang
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y dang xay hoi. lieu va nam thuc va hanh va ((ca tren) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y dang xay hoi. lieu va nam thuc va hanh va ((ca tren) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: vu sach y dang xay hoi. lieu va nam thuc va hanh va ((ca tren) or (cua viet))*.