Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
sach thu » sach thue, sach thieu, sach tham
xanh lam » hanh lam, dinh lam, xanh a
van xanh » van anh, van hanh, van manh
duc van » duc va, duc tan, duc manh
cam duc » cam xuc, cao duc, pham duc
sach tu » cach tu, sach ty, sach uu
lanh xa » lang xa, lanh va, canh xa
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach tu) OR (sach thu)) lanh xa hoi. lieu va cam duc van xanh lam ((cua viet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (sach thu)) lanh xa hoi. lieu va cam duc van xanh lam ((cua viet) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tu) OR (sach thu)) lanh xa hoi. lieu va cam duc van xanh lam ((cua viet) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) OR (sach thu)) lanh xa hoi. lieu va cam duc van xanh lam ((cua viet) or (cuu tre))*.