go Multithreaded data search

package main

import (
	"fmt"
	"strings"
	"time"
)

type User struct {
	Email string
	Name string
}

var DataBase = []User{
	{"[email protected]"," Zhang San "},
	{"[email protected]"," Zhang Lisi "},
	{"[email protected]"," Wang Wu "},
	{"[email protected]"," Zhao Liu "},
	{"[email protected]"," Li Qi "},
	{"[email protected]"," Wusong "},
	{"[email protected]"," Lin Chong "},
	{"[email protected]"," Chaogai "},
	{"[email protected]"," Li Kui "},
	{"[email protected]"," Song Jiang "},
	{"[email protected]"," lu "},
	{"[email protected]"," Wu Yong "},
}

type Worker struct {
	users []User
	ch chan *User
	name string
}
func NewWorker(users []User, ch chan *User, name string)*Worker{
	return &Worker{
		users: users,
		ch:    ch,
		name:  name,
	}
}

func (w*Worker)Find(email string){
	for i:=range w.users{
		user := &w.users[i]
		if strings.Contains(user.Email, email){
			w.ch <- user
		}
	}
}

func main() {

	email := "sdfg5sfdg5"
	ch := make(chan *User)
	go NewWorker(DataBase[:3], ch," Wu Yong ").Find(email)
	go NewWorker(DataBase[3:8], ch," Wu Yong ").Find(email)
	go NewWorker(DataBase[8:], ch," Wu Yong ").Find(email)

	for   {
		select {
		case user := <-ch:
			fmt.Println(user.Email,user.Name)
			return
		case <-time.After(time.Second):
			fmt.Println("find-ing")
		}
	}
	
}