Perhaps you should try some spelling variations:
"mau phieu phan tich hoc dung thuoc" » "mau lieu phan tich hoc dung thuoc", "mau hieu pham tich hoc dung thuoc", "mau hieu phap tich hoc dung thuoc", "mau chien phan tich hoc dung thuoc", "mau dieu phan tich hoc dung thuoc", "mau phieu phan tinh hoc dung thuoc", "mau phieu phan dich hoc dung thuoc", "mau phieu phan tich hop dung thuoc", "mau phieu phan tich hoc ung thuoc", "mau phieu phan tich hoc dan thuoc", "mau phieu phan tich hoc cong thuoc"
"mau phieu phan tich tac dung hoc" » "mau lieu phan tich tac dung hoc", "mau hieu pham tich tac dung hoc", "mau hieu phap tich tac dung hoc", "mau chien phan tich tac dung hoc", "mau dieu phan tich tac dung hoc", "mau phieu phan tich cac dung hoc", "mau phieu phan tich tai dung hoc", "mau phieu phan tich sac dung hoc", "mau phieu phan tich sach dung hoc", "mau phieu phan tich xay dung hoc", "mau phieu phan tich tin dung hoc", "mau phieu phan tich tac dong hoc", "mau phieu phan tich tac trung hoc", "mau phieu phan tich tac dung khoa"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("mau phieu phan tich hoc dung thuoc") or ("mau phieu phan tich tac dung hoc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("mau phieu phan tich hoc dung thuoc") OR ("mau phieu phan tich tac dung hoc")).
• Removing quotes may allow a broader search: (( mau phieu phan tich hoc dung thuoc ) or ( mau phieu phan tich tac dung hoc )).
• Adding a wildcard symbol may retrieve word variants: (("mau phieu phan tich hoc dung thuoc") or ("mau phieu phan tich tac dung hoc"))*.