Perhaps you should try some spelling variations:
labor laboratory » laboratory laboratory, under laboratory, inter laboratory
world working » works working, work working, world making
cold working » color working, word working, cold worked
world spring » world during, world print, world seeing

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: ((((cold working) OR (world working))) OR (world spring)) labor laboratory.
• Adding a wildcard symbol may retrieve word variants: ((((cold working) or (world working))) or (world spring)) labor laboratory*.