Perhaps you should try some spelling variations:
"mau phieu phan tich du dung thuoc" » "mau lieu phan tich du dung thuoc", "mau hieu pham tich du dung thuoc", "mau phe phan tich du dung thuoc", "mau phieu phan tich du dung hoc", "mau chien phan tich du dung thuoc", "mau dieu phan tich du dung thuoc", "mau phieu phan tich duc dung thuoc", "mau phieu phan tich duy dung thuoc", "mau phieu phan tich su dung thuoc"
"mau hieu phap tich du dung thuoc" » "mau hieu phap tich du dung hoc", "mau hien phap tich du dung thuoc", "mau lieu phap tich du dung thuoc", "mau hieu pham tich du dung thuoc", "mau hieu phap tinh du dung thuoc", "mau hieu phap dich du dung thuoc", "mau hieu phap sinh du dung thuoc", "mau dieu phap tich du dung thuoc", "thau hieu phap tich du dung thuoc", "manh hieu phap tich du dung thuoc", "mau hieu phap tich duc dung thuoc", "mau hieu phap tich duy dung thuoc", "mau hieu phap tich su dung thuoc"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("mau phieu phan tich du dung thuoc") OR ("mau hieu phap tich du dung thuoc"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mau phieu phan tich du dung thuoc\") OR (\"mau hieu phap tich du dung thuoc\"))".
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• Adding a wildcard symbol may retrieve word variants: (("mau phieu phan tich du dung thuoc") OR ("mau hieu phap tich du dung thuoc"))*.