Perhaps you should try some spelling variations:
"tieu su cho nghien." » "tieu su chi nghien." (Expand Search), "tieu su nha nghien." (Expand Search), "tieu su hoa nghien." (Expand Search), "thieu so cho nghien." (Expand Search), "tieu su chon nghien." (Expand Search), "tieu su che nghien." (Expand Search), "tieu su chu nghien." (Expand Search)
"tieu su su nghien." » "tieu su su nghiep." (Expand Search), "tieu su tu nghien." (Expand Search), "tieu su qua nghien." (Expand Search), "thieu so su nghien." (Expand Search)
"tieu su so nghien." » "tieu su noi nghien." (Expand Search), "tieu su hoa nghien." (Expand Search), "tieu su hoi nghien." (Expand Search), "thieu so so nghien." (Expand Search), "tieu su son nghien." (Expand Search), "tieu su co nghien." (Expand Search), "tieu tu so nghien." (Expand Search)

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: (("tieu su su nghien.") OR ((("tieu su so nghien.") OR ("tieu su cho nghien."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"tieu su su nghien.\") OR (((\"tieu su so nghien.\") OR (\"tieu su cho nghien.\"))))".
• Removing quotes may allow a broader search: (( tieu su su nghien. ) OR ((( tieu su so nghien. ) OR ( tieu su cho nghien. )))).
• Adding a wildcard symbol may retrieve word variants: (("tieu su su nghien.") OR ((("tieu su so nghien.") OR ("tieu su cho nghien."))))*.