*A keyword search will ignore the searches on the other categories.
Therefore, any keyword search combined with a search on another category
will return all records that match the keyword search, not just those that
match the keyword search and the search criteria for the other categories.
*Also, this is a boolean search. It will default to an "or" search.
That means that if you search on two words, it will return all rows that have either of the two words, not both.
If you want to do an "and" search, type the + sign before each word. So, typing "+africa +asia" would search
for rows where the words "africa" and "asia" both appear somewhere in the row. The search is not case sensitive.