Perhaps you should try some spelling variations:
"mau lieu phap lich su dung thuoc" » "mau lieu phap lich su dung hoc", "mau bien phap lich su dung thuoc", "mau hien phap lich su dung thuoc", "mau lieu pha lich su dung thuoc", "mau lieu phap dich su dung thuoc", "mau lieu phan tich su dung thuoc", "mau dieu phap lich su dung thuoc", "mau phieu phap lich su dung thuoc", "vat lieu phap lich su dung thuoc"
"mau chieu phim lich su dung thuoc" » "mau chieu phim lich su dung hoc", "mau chien phim lich su dung thuoc", "mau phieu phim lich su dung thuoc", "mot 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 lieu phap lich su dung thuoc") or ("mau chieu phim lich su dung thuoc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("mau lieu phap lich su dung thuoc") OR ("mau chieu phim lich su dung thuoc")).
• Removing quotes may allow a broader search: (( mau lieu phap lich su dung thuoc ) or ( mau chieu phim lich su dung thuoc )).
• Adding a wildcard symbol may retrieve word variants: (("mau lieu phap lich su dung thuoc") or ("mau chieu phim lich su dung thuoc"))*.