求一条SQL查询话语，超级简单哈，要分的来

求一条SQL查询语句，超级简单哈，要分的来
select   top   5   num   from   Product   Where   Name   LIKE   '% "   +   str_search   +   "% '   order   by   num   DESC

我现在想查询   Name   或者   ProducingArea   或者   Tag   都   LIKE   '% "   +   str_search   +   "% '     用SQL怎么写？

select   top   5   num   from   Product   Where   （Name   or   roducingArea   or   Tag)   LIKE   '% "   +   str_search   +   "% '   order   by   num   DESC   这样不对

select   top   5   num   from   Product   Where   Name   LIKE   '% "   +   str_search   +   "% '   or   producingArea     LIKE   '% "   +   str_search   +   "% '   order   by   num   DESC   这样又太麻烦


------解决方案--------------------------------------------------------
只能按麻烦的写
------解决方案--------------------------------------------------------
你想怎样?
------解决方案--------------------------------------------------------
select top 5 num from Product Where Name LIKE '% " + str_search + "% ' or producingArea LIKE '% " + str_search + "% ' order by num DESC

只能这样写吧！