Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, va tinh, le thanh
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, dua tren
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 duc ((va thanh) OR (ban thanh)) thai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang xa hoi. hieu van cam duc ((va thanh) OR (ban thanh)) thai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky dang xa hoi. hieu van cam duc ((va thanh) OR (ban thanh)) thai ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: su sac ky dang xa hoi. hieu van cam duc ((va thanh) OR (ban thanh)) thai ((cua tre) or (cua triet))*.