Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
ky dang » ky danh
van cam » van nam, van lam, van cau
cam cua » ca cua, nam cua, cau cua
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac

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