Perhaps you should try some spelling variations:
"bi shuai conference" » "bi hci conference" (Expand Search), "bi soas conference" (Expand Search), "bi annual conference" (Expand Search), "li shuai conference" (Expand Search), "shi shuai conference" (Expand Search), "bi hui conference" (Expand Search)
"bi hbai conference" » "bi hci conference" (Expand Search), "bi ewci conference" (Expand Search), "bi ais conference" (Expand Search)
"big ds conference" » "big 1st conference" (Expand Search), "big ais conference" (Expand Search), "big duxu conference" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("big ds conference") OR ((("bi hbai conference") OR ("bi shuai conference"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"big ds conference\") OR (((\"bi hbai conference\") OR (\"bi shuai conference\"))))".
• Removing quotes may allow a broader search: (( big ds conference ) OR ((( bi hbai conference ) OR ( bi shuai conference )))).
• Adding a wildcard symbol may retrieve word variants: (("big ds conference") OR ((("bi hbai conference") OR ("bi shuai conference"))))*.