Perhaps you should try some spelling variations:
"nhan dat cua chinh tri vien." » "nhan dat luan chinh tri vien." (Expand Search), "nhan dan cua chinh tri vien." (Expand Search), "han dat cua chinh tri vien." (Expand Search), "nhan dang cua chinh tri vien." (Expand Search), "nhan dat cua chinh tai vien." (Expand Search), "nhan dat cua chinh tri viet." (Expand Search), "nhan dat cua chinh tri kien." (Expand Search), "nhan vat cua chinh tri vien." (Expand Search), "nhan mat cua chinh tri vien." (Expand Search), "nhan hat cua chinh tri vien." (Expand Search)
"tran dang su chinh tri vien." » "tran quang su chinh tri vien." (Expand Search), "tran dinh su chinh tri vien." (Expand Search), "tran hong su chinh tri vien." (Expand Search), "tran dang su chinh tai vien." (Expand Search), "tran dang su chinh tri viet." (Expand Search), "tran dang su chinh tri kien." (Expand Search), "tran dang so chinh tri vien." (Expand Search), "tran dang cuu chinh tri vien." (Expand Search), "tran dang luc chinh tri vien." (Expand Search), "tran dang duy 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: (("nhan dat cua chinh tri vien.") OR ("tran dang su chinh tri vien."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nhan dat cua chinh tri vien.\") OR (\"tran dang su chinh tri vien.\"))".
• Removing quotes may allow a broader search: (( nhan dat cua chinh tri vien. ) OR ( tran dang su chinh tri vien. )).
• Adding a wildcard symbol may retrieve word variants: (("nhan dat cua chinh tri vien.") OR ("tran dang su chinh tri vien."))*.