Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
cua viet » ca viet, hoa viet, cua vat
hien cac » thien cac, vien cac, hieu cac
dinh vai » dinh van, dinh vi, dinh va
vai cua » dai cua, hai cua, lai cua
dao van » do van, dang van
sach ky » sac ky, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
bao va » bao ve, tao va, ban va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang xa hoi. hieu hien cac ((bao va) OR (dao van)) dinh vai cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) nang xa hoi. hieu hien cac ((bao va) or (dao van)) dinh vai cua viet~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) nang xa hoi. hieu hien cac ((bao va) or (dao van)) dinh vai cua viet*.