Perhaps you should try some spelling variations:
"nhan vat te chinh tri vien." » "nhan vat ve chinh tri vien." (Expand Search), "nhan vat va chinh tri vien." (Expand Search), "nhan vat te chinh tai vien." (Expand Search), "nhan vat te chinh tri viet." (Expand Search), "nhan vat te chinh tri kien." (Expand Search), "nhan vat tre chinh tri vien." (Expand Search), "nhan vat tu chinh tri vien." (Expand Search)
"nhan sat tai chinh tri vien." » "nhan sat tai chinh tai vien." (Expand Search), "nhan sat tai chinh tri viet." (Expand Search), "nhan sat tai chinh tri kien." (Expand Search), "nhan dat tai chinh tri vien." (Expand Search), "nhan sac tai chinh tri vien." (Expand Search), "nhan hat tai chinh tri vien." (Expand Search), "nhan sat toan 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 te chinh tri vien.") OR ("nhan sat tai chinh tri vien."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nhan vat te chinh tri vien.\") OR (\"nhan sat tai chinh tri vien.\"))".
• Removing quotes may allow a broader search: (( nhan vat te chinh tri vien. ) OR ( nhan sat tai chinh tri vien. )).
• Adding a wildcard symbol may retrieve word variants: (("nhan vat te chinh tri vien.") OR ("nhan sat tai chinh tri vien."))*.