Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thanh ly » thanh lay, thanh ky, thanh le
va tham » van tham, va thanh, va thuat
cua tre » cua te, cuu tre, cua triet
cuu gia » cuu giai, cuu giao, cua gia
te sach » toc sach
va cham » va chat
tang ma » mang may, tang van
sach 6 » sach y, sach 2
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach 6 tang ma hoi. hieu ((va cham) OR (va tham)) cuu gia thanh ly ((cua tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach 6 tang ma hoi. hieu ((va cham) OR (va tham)) cuu gia thanh ly ((cua tre) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach 6 tang ma hoi. hieu ((va cham) OR (va tham)) cuu gia thanh ly ((cua tre) or (cua viet))".
• Adding a wildcard symbol may retrieve word variants: te sach 6 tang ma hoi. hieu ((va cham) OR (va tham)) cuu gia thanh ly ((cua tre) or (cua viet))*.