Perhaps you should try some spelling variations:
ban thanh » ban hang
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
dau luc » cau luc, dau luan, dau nuoc
moi cua » hoi cua, doi cua, moi quan
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
va dau » va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. hieu va dau luc ((ban thanh) OR (ban hanh)) moi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu va dau luc ((ban thanh) OR (ban hanh)) moi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu va dau luc ((ban thanh) OR (ban hanh)) moi cua tre*.