Perhaps you should try some spelling variations:
"nhan vat cua chinh tri viet." » "nhan vat luan chinh tri viet." (Expand Search), "nhan vat cua chinh tai viet." (Expand Search), "nhan vat cua chinh thi viet." (Expand Search), "nhan vat cua chinh hoi viet." (Expand Search), "nhan vat chat chinh tri viet." (Expand Search), "phan vat cua chinh tri viet." (Expand Search)
"nhan vat tu chinh dai viet." » "nhan vat tu chinh tai viet." (Expand Search), "nhan vat tu chinh doi viet." (Expand Search), "nhan vat tu chinh dau viet." (Expand Search), "nhan vat te chinh dai viet." (Expand Search), "nhan vat su chinh dai viet." (Expand Search), "nhan vat tai chinh dai viet." (Expand Search), "nhan bat tu chinh dai viet." (Expand Search), "nhan vat tieu chinh dai viet." (Expand Search), "phan vat tu chinh dai viet." (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 cua chinh tri viet.") OR ("nhan vat tu chinh dai viet."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nhan vat cua chinh tri viet.\") OR (\"nhan vat tu chinh dai viet.\"))".
• Removing quotes may allow a broader search: (( nhan vat cua chinh tri viet. ) OR ( nhan vat tu chinh dai viet. )).
• Adding a wildcard symbol may retrieve word variants: (("nhan vat cua chinh tri viet.") OR ("nhan vat tu chinh dai viet."))*.