Perhaps you should try some spelling variations:
chau viet » khau viet, cham viet, chat viet
nham thuc » nhan thuc, nam thuc, nham thu
sach thu » sach thue, sach thieu, sach tham
thu bang » thu ban, thu hang, chu bang
hieu van » hieu va, thien van, lieu va
van nham » van nam, van nhan, van tham
danh lai » danh sai, gianh lai, dinh lam
chu viet » che viet, khau viet, su viet
vu sach » vu bach, su sach, vu khach
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
bang x » nang x, bang _, bang 2
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 x hoi. hieu van nham thuc va danh lai ((chau viet) or (chu viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach thu bang x hoi. hieu van nham thuc va danh lai ((chau viet) OR (chu viet)).
• Adding a wildcard symbol may retrieve word variants: vu sach thu bang x hoi. hieu van nham thuc va danh lai ((chau viet) or (chu viet))*.