Perhaps you should try some spelling variations:
"nhan vat tu chinh tri vien." » "nhan vat su chinh tri vien." (Expand Search), "nhan vat tai chinh tri vien." (Expand Search), "nhan vat cua chinh tri vien." (Expand Search), "nhan vat tu chinh tai vien." (Expand Search), "nhan vat tu chinh tri viet." (Expand Search), "nhan vat tu chinh tri chien." (Expand Search), "nhan bat tu chinh tri vien." (Expand Search), "nhan vat tieu chinh tri vien." (Expand Search)
"phan vat te chinh tri kien." » "phan van te chinh tri kien." (Expand Search), "phan va te chinh tri kien." (Expand Search), "phan vao te chinh tri kien." (Expand Search), "phan vat ve chinh tri kien." (Expand Search), "phan vat tai chinh tri kien." (Expand Search), "phan vat va chinh tri kien." (Expand Search), "phan vat te chinh trien kien." (Expand Search), "phan vat te chinh tri kinh." (Expand Search), "phan vat tre chinh tri kien." (Expand Search), "phan vat tieu 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 tu chinh tri vien.") OR ("phan vat te chinh tri kien."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nhan vat tu chinh tri vien.\") OR (\"phan vat te chinh tri kien.\"))".
• Removing quotes may allow a broader search: (( nhan vat tu chinh tri vien. ) OR ( phan vat te chinh tri kien. )).
• Adding a wildcard symbol may retrieve word variants: (("nhan vat tu chinh tri vien.") OR ("phan vat te chinh tri kien."))*.