Perhaps you should try some spelling variations:
"luan van nu chinh tri vien." » "luan van su chinh tri vien." (Expand Search), "luan van tu chinh tri vien." (Expand Search), "luan van cua 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 chien." (Expand Search), "luan van cu chinh tri vien." (Expand Search), "quan van nu chinh tri vien." (Expand Search)
"luan van nu chinh tri kien." » "luan van su chinh tri kien." (Expand Search), "luan van tu chinh tri kien." (Expand Search), "luan van cua chinh tri kien." (Expand Search), "luan van nu chinh trien kien." (Expand Search), "luan van nu chinh tri kinh." (Expand Search), "luan van cu chinh tri kien." (Expand Search), "quan van nu chinh tri kien." (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 nu chinh tri kien."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"luan van nu chinh tri vien.\") OR (\"luan van nu chinh tri kien.\"))".
• Removing quotes may allow a broader search: (( luan van nu chinh tri vien. ) OR ( luan van nu chinh tri kien. )).
• Adding a wildcard symbol may retrieve word variants: (("luan van nu chinh tri vien.") OR ("luan van nu chinh tri kien."))*.