Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh dai » thanh hai, thanh tai, thanh dat
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
van cam » van nam, van lam, van dam
van cau » van dau, van hau, van chat
qua ban » cua ban, qua quan
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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 dang xa hoi. hieu ((van cam) OR (van cau)) qua ban thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky dang xa hoi. hieu ((van cam) OR (van cau)) qua ban thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky dang xa hoi. hieu ((van cam) OR (van cau)) qua ban thanh dai cua tre*.