Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh doi » thanh loi, thanh moi, thanh do
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
dau luc » cau luc, dau luan, dau nuoc
luc ban » duc ban, cuc ban, luc bat
doi cua » dai cua, hoi cua, dong cua
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su xac
su cac » tu cac, su cao, su can
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) OR (su cac)) ky nang xa hoi. hieu va dau luc ban thanh doi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su cac)) ky nang xa hoi. hieu va dau luc ban thanh doi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su cac)) ky nang xa hoi. hieu va dau luc ban thanh doi cua tre*.