Perhaps you should try some spelling variations:
"mau phieu phan tich so dung thuoc" » "mau hieu pham tich so dung thuoc", "mau hieu phap tich so dung thuoc", "mau phe phan tich so dung thuoc", "mau phieu phan tich so dung hoc", "mau chien phan tich so dung thuoc", "mau dieu phan tich so dung thuoc", "mau phieu phan tich bao dung thuoc", "mau phieu phan tinh son dung thuoc", "mau phieu phan tich su dung thuoc", "mau phieu phan tich hoc dung thuoc", "mau phieu phan tich noi dung thuoc"
"mau lieu phan tich so dung thuoc" » "mau lieu phan tich so dung hoc", "mau lieu phap tich so dung thuoc", "mau lieu phuc tich so dung thuoc", "mau lieu tham tich so dung thuoc", "mau dieu phan tich so dung thuoc", "vat lieu phan tich so dung thuoc", "du lieu phan tich so dung thuoc", "mau lieu phan tich bao dung thuoc", "mau lieu phan tinh son dung thuoc", "mau lieu phan tich su dung thuoc", "mau lieu phan tich hoc dung thuoc", "mau lieu phan tich noi dung thuoc"

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