Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
cac toc » cac toi, cac nuoc, cac thoi
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
sach ly » sach y, sach lo, sach ty
cuu tre » cua tre, cau tren, cau treo
thi van » thi lan, thi hanh, thi nang
lang xa » lang ha, dang xay, lang van
ly lang » ly hang, ly vang, le lang
nuoc » quoc, duoc, ngoc

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 ly lang xa hoi. thi van ((cac toc) or (dat nuoc)) va danh vi ((cua viet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly lang xa hoi. thi van ((cac toc) OR (dat nuoc)) va danh vi ((cua viet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: su sach ly lang xa hoi. thi van ((cac toc) or (dat nuoc)) va danh vi ((cua viet) or (cuu tre))*.