Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
nam thuc » nam thuoc, am thuc, nam thu
thanh va » thanh van, thanh ha, thanh ve
dang nam » dong nam, dan nam, dung nam
hanh va » hanh vi
thuc va » thuc vat, thuc dan, thuc day
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
ve nam » he nam, va nam, le nam

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 ty ((hang va) or (dang nam)) hoi. hieu ve nam thuc va ((thanh va) or (hanh va)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((hang va) OR (dang nam)) hoi. hieu ve nam thuc va ((thanh va) OR (hanh va)) cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach ty ((hang va) or (dang nam)) hoi. hieu ve nam thuc va ((thanh va) or (hanh va)) cua viet*.