Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
thue nang » thien nang, thuat nang, thi nang
cham thuc » nham thuc, pham thuc, tham thuc
danh viet » anh viet, ninh viet, nang viet
doc sach » hoc sach, toc sach, nuoc sach
thuc dan » thuc hanh, hoc dan, thuc vat
dan danh » van danh, han danh, ban danh
viet cua » viec cua, viet ca, viet qua
va cham » va chat, va tham
cua te » cua tu
x hoi » o hoi, x ho
5 hoi » o hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach thue nang ((((x hoi) or (5 hoi))) or (xa hoi)). lieu va cham thuc dan danh viet cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach thue nang ((((x hoi) OR (5 hoi))) OR (xa hoi)). lieu va cham thuc dan danh viet cua te.
• Adding a wildcard symbol may retrieve word variants: doc sach thue nang ((((x hoi) or (5 hoi))) or (xa hoi)). lieu va cham thuc dan danh viet cua te*.