Perhaps you should try some spelling variations:
"mau phieu phan tich su trung quoc" » "mau lieu phan tich su trung quoc", "mau hieu pham tich su trung quoc", "mau hieu phap tich su trung quoc", "mau chien phan tich su trung quoc", "mau dieu phan tich su trung quoc", "mau phieu phan tich su dung quoc", "mau phieu phan tich do trung quoc", "mau phieu phan tich le trung quoc", "mau phieu phan tich du trung quoc", "mau phieu phan tich so trung quoc", "mau phieu phan tinh su trung quoc"
"mau phieu phan lich su trung hoc" » "mau lieu phan lich su trung hoc", "mau hieu pham lich su trung hoc", "mau hieu phap lich su trung hoc", "mau chien phan lich su trung hoc", "mau dieu phan lich su trung hoc", "mau phieu phan dich su trung hoc", "mau phieu pha lich su trung hoc", "mau phieu phan xich su trung hoc", "mau phieu phan lich su dung hoc", "mau phieu phan lich do trung hoc", "mau phieu phan lich le trung hoc"

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: (("mau phieu phan tich su trung quoc") or ("mau phieu phan lich su trung hoc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("mau phieu phan tich su trung quoc") OR ("mau phieu phan lich su trung hoc")).
• Removing quotes may allow a broader search: (( mau phieu phan tich su trung quoc ) or ( mau phieu phan lich su trung hoc )).
• Adding a wildcard symbol may retrieve word variants: (("mau phieu phan tich su trung quoc") or ("mau phieu phan lich su trung hoc"))*.