Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
tham du » thap du, tham do, pham duc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cua tre » cua te, cuu tre, dua tren
tu dan » tuc dan, tu ban, cu dan
dan ky » van ky
x hoi » xa hoi, o hoi, x ho
du va » dau va, tu va, su va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan ky nang x hoi. hieu van tham du va danh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan ky nang x hoi. hieu van tham du va danh vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu dan ky nang x hoi. hieu van tham du va danh vi ((cua tre) or (cua triet))*.