Perhaps you should try some spelling variations:
bound polymers » bound polymer, bound polysomes, based polymers
host polymers » soft polymers, ucst polymers, about polymers
cost polymers » cnt polymers, soft polymers, ucst polymers
cost polymer » soft polymer, cnt polymer, ucst polymer

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: ((((host polymers) OR (bound polymers))) OR (((cost polymers) OR (cost polymer)))).
• Adding a wildcard symbol may retrieve word variants: ((((host polymers) or (bound polymers))) or (((cost polymers) or (cost polymer))))*.