Perhaps you should try some spelling variations:
thanh trinh » hanh trinh, thanh tinh, thanh binh
thanh tri » thanh tra, thanh tai, chinh tri
hieu van » hieu va, thien van, lieu va
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
nam duc » nam duoc, pham duc, nam thuc
cua tre » cua te, cuu tre, cua triet
su sai » su tai, su hai, su dai
sai ky » sac 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 sai ky dang xa hoi. hieu van nam duc va ((thanh tri) or (thanh trinh)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky dang xa hoi. hieu van nam duc va ((thanh tri) OR (thanh trinh)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sai ky dang xa hoi. hieu van nam duc va ((thanh tri) or (thanh trinh)) cua tre*.