Perhaps you should try some spelling variations:
"nhan vat hoc chinh tri vien." » "nhan vat hoa chinh tri vien." (Expand Search), "nhan vat hoc chinh tai vien." (Expand Search), "nhan vat hoc chinh tri viet." (Expand Search), "nhan vat hoc chinh tri chien." (Expand Search), "nhan phat hoc chinh tri vien." (Expand Search), "nhan luat hoc chinh tri vien." (Expand Search), "phan vat hoc chinh tri vien." (Expand Search)
"nhan vat so chinh tri kien." » "nhan vat do chinh tri kien." (Expand Search), "nhan vat hoa chinh tri kien." (Expand Search), "nhan vat moi chinh tri kien." (Expand Search), "nhan vat so chinh trien kien." (Expand Search), "nhan vat so chinh tri kinh." (Expand Search), "nhan vat o chinh tri kien." (Expand Search), "nhan vat co chinh tri kien." (Expand Search), "phan vat so 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: (("nhan vat so chinh tri kien.") OR ("nhan vat hoc chinh tri vien."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nhan vat so chinh tri kien.\") OR (\"nhan vat hoc chinh tri vien.\"))".
• Removing quotes may allow a broader search: (( nhan vat so chinh tri kien. ) OR ( nhan vat hoc chinh tri vien. )).
• Adding a wildcard symbol may retrieve word variants: (("nhan vat so chinh tri kien.") OR ("nhan vat hoc chinh tri vien."))*.