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