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