Perhaps you should try some spelling variations:
"coal research library" » "coal research libraries", "coal research laboratory", "coal research summary", "doctoral research library", "capital research library"
"global research library" » "global research libraries", "global research laboratory", "global research summary", "global search library"
"local research library" » "local research libraries", "local research laboratory", "local research summary", "local search library", "clinical research library", "medical research library"

Try widening your search to All Fields.

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("coal research library") OR ("global research library"))) OR ("local research library")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"coal research library\") OR (\"global research library\"))) or (\"local research library\"))".
• Removing quotes may allow a broader search: (((( coal research library ) OR ( global research library ))) or ( local research library )).
• Adding a wildcard symbol may retrieve word variants: (((("coal research library") OR ("global research library"))) or ("local research library"))*.