Perhaps you should try some spelling variations:
"mau phieu phap lich su dung thuoc" » "mau hieu phap lich su dung thuoc", "mau phieu phan lich su dung thuoc", "mau hien phap lich su dung thuoc", "mau phieu phap lich su dung hoc", "mau chien phap lich su dung thuoc", "mau dieu phap lich su dung thuoc", "mau phieu pha lich su dung thuoc", "mau phieu phap dich su dung thuoc", "mau phieu phan tich su dung thuoc"
"mau chieu phim lich su dung thuoc" » "mau chieu phim lich su dung hoc", "mau chien phim lich su dung thuoc", "mot chieu phim lich su dung thuoc", "tam chieu phim lich su dung thuoc", "mau chieu pha lich su dung thuoc"

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