Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
thanh va » thanh van, hanh va, thanh ha
thanh ve » hanh ve, thanh vien, thanh van
so sach » so sanh, bo sach, hoc sach
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
co sach » bo sach, cuon sach, hoc sach
xuc va » duc va, tuc va, luc va
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: ((so sach) or (co sach)) ky lang xa hoi. hieu va cam xuc va ((thanh ve) OR (thanh va)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (co sach)) ky lang xa hoi. hieu va cam xuc va ((thanh ve) OR (thanh va)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (co sach)) ky lang xa hoi. hieu va cam xuc va ((thanh ve) OR (thanh va)) cua viet".
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (co sach)) ky lang xa hoi. hieu va cam xuc va ((thanh ve) OR (thanh va)) cua viet*.