Perhaps you should try some spelling variations:
"yu da shi cong qun cong shu." » "yu da shi cong lun cong shu.", "yu da shi gong qun cong shu.", "yu da shi hong quan cong shu.", "yu da shi cong qu cong shu.", "yu da shi cong xuan cong shu."
"yu fa shi cong qun cong shu." » "yu fa shi cong lun cong shu.", "yu fa shi gong qun cong shu.", "yu fa shi hong quan cong shu.", "yu fa shi cong qu cong shu.", "yu fa shi cong xuan cong shu."
"yu de shi yong yu cong shu." » "yu de shi yong yi cong shu.", "yu de shi yong du cong shu.", "yu de shi yong jiu cong shu."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("yu de shi yong yu cong shu.") or ((("yu da shi cong qun cong shu.") OR ("yu fa shi cong qun cong shu."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("yu de shi yong yu cong shu.") OR ((("yu da shi cong qun cong shu.") OR ("yu fa shi cong qun cong shu.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"yu de shi yong yu cong shu.\") or (((\"yu da shi cong qun cong shu.\") OR (\"yu fa shi cong qun cong shu.\"))))".
• Removing quotes may allow a broader search: (( yu de shi yong yu cong shu. ) or ((( yu da shi cong qun cong shu. ) OR ( yu fa shi cong qun cong shu. )))).
• Adding a wildcard symbol may retrieve word variants: (("yu de shi yong yu cong shu.") or ((("yu da shi cong qun cong shu.") OR ("yu fa shi cong qun cong shu."))))*.