Perhaps you should try some spelling variations:
"world trade cross industry business guide" » "world trade cross country business guide", "world trade cross industry bodies guide", "world trade cross introductory business guide", "world trade cruise industry business guide", "world trade goods industry business guide", "world trade foods industry business guide", "world trade loss industry business guide"
"world trade costs country dummies during" » "world trade cross country dummies during", "world trade host country dummies during", "world trade crisis country dummies during", "world trading costs country dummies during"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("world trade costs country dummies during") or ("world trade cross industry business guide"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("world trade costs country dummies during") OR ("world trade cross industry business guide")).
• Removing quotes may allow a broader search: (( world trade costs country dummies during ) or ( world trade cross industry business guide )).
• Adding a wildcard symbol may retrieve word variants: (("world trade costs country dummies during") or ("world trade cross industry business guide"))*.