use + if result must have searchvalue.
i.e.: +embozene
use - if result must not have searchvalue.
i.e.: -embozene
for muliple search use following seperators " , . ; ".
i.e.: preliminary; +microspheres,-embozene
you can combine exact search with % or * to find more results.
i.e.: "%embozene microspheres", "embozene microspheres%"
you can also use +/- before exact search.
i.e.: +"*embozene microspheres*"
range search for decimal values (like IDs) can be done like -.
i.e.: 123-129, -124-126