Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
cau theo » cau thi, cau tao
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
va dinh » van dinh, va kinh, va tinh
dinh di » dinh du, dinh vi, danh di
cu tren » tu tren, dua tren
vu san » va san, vu ban
san ky » sang ky, van ky, dan ky
ve nam » he nam, va nam, le nam
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu san ky nang x hoi. hieu ve nam thuc va dinh di ((cau theo) or (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu san ky nang x hoi. hieu ve nam thuc va dinh di ((cau theo) OR (cu tren)).
• Adding a wildcard symbol may retrieve word variants: vu san ky nang x hoi. hieu ve nam thuc va dinh di ((cau theo) or (cu tren))*.