Perhaps you should try some spelling variations:
"enhancing international airport" » "chairing international airport" (Expand Search), "enhancing interlaminar airport" (Expand Search), "enhancing interpersonal airport" (Expand Search), "enhancing international affairs" (Expand Search)
"enhancing international market" » "chairing international market" (Expand Search), "enhancing interlaminar market" (Expand Search), "enhancing interpersonal market" (Expand Search), "enhancing international trade" (Expand Search), "enhancing international law" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("enhancing international airport") OR ("enhancing international market"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"enhancing international airport\") OR (\"enhancing international market\"))".
• Removing quotes may allow a broader search: (( enhancing international airport ) OR ( enhancing international market )).
• Adding a wildcard symbol may retrieve word variants: (("enhancing international airport") OR ("enhancing international market"))*.