Perhaps you should try some spelling variations:
chau viet » chu viet, khau viet, cham viet
nham thuc » nhan thuc, nam thuc, nham thu
danh lai » danh sai, gianh lai, dinh lam
hieu van » hieu va, thien van, hieu ve
thu bang » thu hang, chu bang, thu trang
thu ban » thu hang
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
vu sach » vu bach, su sach, vu khach
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 sach ((thu bang) or (thu ban)) x hoi. ((hieu van) OR (lieu va)) nham thuc va danh lai chau viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((thu bang) OR (thu ban)) x hoi. ((hieu van) OR (lieu va)) nham thuc va danh lai chau viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((thu bang) or (thu ban)) x hoi. ((hieu van) OR (lieu va)) nham thuc va danh lai chau viet".
• Adding a wildcard symbol may retrieve word variants: vu sach ((thu bang) or (thu ban)) x hoi. ((hieu van) OR (lieu va)) nham thuc va danh lai chau viet*.