If you don't have an author or title, start with the keyword search.
Searching nmr polymers is the same as nmr and polymers, and will retrieve only records with both terms.
Searching nmr or polymers will retrieve with at least one term, giving you a larger set of results.
Use * at the end of a word to search for variant endings. For example, spectr* will search spectra, spectroscopy, spectrometry, spectroscopic...
If you see >> Go to electronic version in the record, that means we have this as an ebook.