Perhaps you should try some spelling variations:
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
ban anh » ban banh, ban danh, bang anh
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
d cua » de cua, do cua, da cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sac ky) or (sach y)) nang xa hoi. hieu va cam xuc ((ban anh) OR (ban hanh)) d cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sach y)) nang xa hoi. hieu va cam xuc ((ban anh) OR (ban hanh)) d cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) or (sach y)) nang xa hoi. hieu va cam xuc ((ban anh) OR (ban hanh)) d cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (sach y)) nang xa hoi. hieu va cam xuc ((ban anh) OR (ban hanh)) d cua tre*.