Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thien van » thi van
cam thuc » am thuc, nam thuc, cam thu
van cam » van nam, van lam, van cau
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
ma hoi » mai hoi, ma hoa, me hoi
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: ((tu cac) or (thuoc sach)) ky nang ((ma hoi) or (xa hoi)). thien van cam thuc va danh di cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (thuoc sach)) ky nang ((ma hoi) OR (xa hoi)). thien van cam thuc va danh di cua vat.
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (thuoc sach)) ky nang ((ma hoi) or (xa hoi)). thien van cam thuc va danh di cua vat*.