how to find a filename??

i used the sublime text 2, 

and i think there are no function about find a filename. right?

what i really wanna do is to find some keyword in a specific file.

and there are many file name,, such as 

#include <sys/types.h>
#include <stdbool.h>
#include <string.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/compiler.h>
#include <nuttx/fs/fs.h>
#include <nuttx/net/net.h>
#include <nuttx/lib.h>
#include <nuttx/kmalloc.h>
#include <nuttx/init.h>
#include "os_internal.h"
#include "sig_internal.h"
#include "wd_internal.h"
#include "sem_internal.h"
#ifndef CONFIG_DISABLE_MQUEUE
# include "mq_internal.h"
#endif
#ifndef CONFIG_DISABLE_PTHREAD
# include "pthread_internal.h"
#endif
#include "clock_internal.h"
#include "timer_internal.h"
#include "irq_internal.h"
#ifdef HAVE_TASK_GROUP
#include "group_internal.h"
#endif



so if i wanna find some word, 

i open the explorer and i search the types.h and then open it. and i search the stdbool.h and then open it.... repeat all the things and then i search that keyword in open files...

so,,, at least what i want is to search the filename in sublime text...

or could i make that package if i study the sublime text? plz help!!! :(