Perhaps you should try some spelling variations:
"luan van nu chinh tri vien." » "luan van su chinh tri vien." (Expand Search), "luan van cua chinh tri vien." (Expand Search), "luan van cuu chinh tri vien." (Expand Search), "luan van nu chinh tai vien." (Expand Search), "luan van nu chinh tri viet." (Expand Search), "luan van nu chinh tri kien." (Expand Search), "luan van cu chinh tri vien." (Expand Search), "quan van nu chinh tri vien." (Expand Search)
"luan van tu chinh tri vien." » "luan van tu chinh tai vien." (Expand Search), "luan van tu chinh tri viet." (Expand Search), "luan van tu chinh tri kien." (Expand Search), "luan van te chinh tri vien." (Expand Search), "luan van su chinh tri vien." (Expand Search), "luan van tai chinh tri vien." (Expand Search), "quan van tu chinh tri vien." (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("luan van nu chinh tri vien.") OR ("luan van tu chinh tri vien."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"luan van nu chinh tri vien.\") OR (\"luan van tu chinh tri vien.\"))".
• Removing quotes may allow a broader search: (( luan van nu chinh tri vien. ) OR ( luan van tu chinh tri vien. )).
• Adding a wildcard symbol may retrieve word variants: (("luan van nu chinh tri vien.") OR ("luan van tu chinh tri vien."))*.