Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
banh chi » danh cho, dinh chi, bao chi
hieu van » hieu va, thien van, lieu va
xuc ban » duc ban, cuc ban, quoc ban
banh di » danh di, xanh di, vanh dai
tu sach » thu sach, su sach, te sach
nang xa » lang xa, nang ma, mang xa
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau

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 ky ((nang xa) or (nang x)) hoi. hieu van cam xuc ban ((banh di) OR (banh chi)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang xa) OR (nang x)) hoi. hieu van cam xuc ban ((banh di) OR (banh chi)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((nang xa) or (nang x)) hoi. hieu van cam xuc ban ((banh di) OR (banh chi)) cua viet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang xa) or (nang x)) hoi. hieu van cam xuc ban ((banh di) OR (banh chi)) cua viet*.