Try this array formula

=IFERROR(INDIRECT(TEXT(SMALL(IF(A$1:C$10<>"",ROW(A$1:C$10)*10^4+COLUMN(A$1:C$10)),ROWS(D$2:D2)),"R0000C0000"),0),"")

A
B
C
D
1
 alpha bravo charlie alpha
2
 delta echo foxtrot bravo
3
 golf hotel india charlie
4
 juliet kilo lima delta
5
 echo
6
 foxtrot
7
 golf
8
 hotel
9
 india
10
 juliet
11
 kilo
12
 lima