Hi try this code.
declare @st xml
set @st= '<Criterias><Criteria><SortBy>sb</SortBy><SortDir>sd</SortDir><JobTitle>jt</JobTitle></Criteria>
<Criteria><SortBy>sb</SortBy><SortDir>sd</SortDir><JobTitle>jt</JobTitle></Criteria></Criterias>'
declare @t table (
SortBy varchar(10),SortDir varchar(10),JobTitle varchar(10)
)
insert into @t
select Data.Col.value('(SortBy)[1]','varchar(10)') as SortBy
,Data.Col.value('(SortDir)[1]','varchar(10)') as SortDir
,Data.Col.value('(JobTitle)[1]','varchar(10)') as JobTitle
from @st.nodes('/Criterias/Criteria') as Data(Col)
select * from @t