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