Perhaps you should try some spelling variations:
"lymphoid fevery" » "lymphoid every", "lymphoid fever", "lymphoid feveryy", "lymphoid fvery", "lymphoid fovery"
"typhoid feveryyy" » "typhoid everyyy", "typhoid feveryy", "typhoid feveryyyy", "typhoid fveryyy", "typhoid foveryyy"
"typhoid fevers" » "typhoid feverys", "typhoid fvers", "typhoid fovers"
"typhoid ever" » "typhoid every", "typhoid ver", "typhoid over"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"lymphoid fevery\") OR (\"typhoid feveryyy\"))) OR (\"typhoid fevers\"))) OR (\"typhoid ever\"))~".
• Removing quotes may allow a broader search: (((((( lymphoid fevery ) OR ( typhoid feveryyy ))) OR ( typhoid fevers ))) OR ( typhoid ever ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("lymphoid fevery") OR ("typhoid feveryyy"))) OR ("typhoid fevers"))) OR ("typhoid ever"))*.