Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
thu sach » tu sach, thuat sach, thuoc sach
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va nham » va cham, va tham, va nha
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
di cua » dai cua, doi cua, de cua

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 (thu sach)) ky nang xa hoi. lieu va nham thuc va danh di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu sach)) ky nang xa hoi. lieu va nham thuc va danh di cua viet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu sach)) ky nang xa hoi. lieu va nham thuc va danh di cua viet*.