R 如何在具有至少一个匹配项或两个匹配项的多列上执行 left_join

我有两个数据帧df_1和df_2(参见下面的dput())，我希望使用LEFT_JOIN基于多个列进行连接.但是，如果至少有一列匹配(如果不是更多)，我希望执行成功的联接.

我目前正在使用代码

join <- left_join(df_1, df_2, by = join_by(Txt_y == Txt_x, Head == Tail), keep = TRUE, na_matches = "never", multiple = "warning", unmatched = "drop")

如果至少有一列有匹配，我如何调整join_by()才能获得匹配？

以下是这两个数据帧的dput():

structure(list(Name_y = c("etwbv", "werg", "sdfg", "qwreg", "gvr", 
"wref"), URL_y = c("ewrg", "werg", "asd", "qwe", "gvre", "vrw"
), Txt_y = c("abc", "bfh", "fse", "rege", "wer", "vwr"), Head = c("abc1", 
"bfh", "fse", "rege1", "wer", "vwr")), class = "data.frame", row.names = c(NA, 
-6L))

structure(list(Name_x = c("etwbv", "werg", "sdfg", "qwreg", "gvr", 
"wref"), URL_x = c("ewrg", "werg", "asd", "qwe", "gvre", "vrw"
), Txt_x = c("abc", "rfwcq", "fse", "wefc", "aefc", "vwr"), Tail = c("abc1", 
"bfh", "fse", "wreg", "ecdw", "vwr")), class = "data.frame", row.names = c(NA, 
-6L))

这就是我想要的输出:

Name_y  URL_y   Txt_y  Head  Name_x URL_x  Txt_x  Tail 
etwbv   ewrg    abc    abc1  etwbv  ewrg   abc    abc1
werg    werg    bfh    bfh   werg   werg   rfwcq  bfh
sdfg    asd     fse    fse   sdfg   asd    fse    fse
qwreg   qwe     rege   rege1 NA     NA     NA     NA
gvr     gvre    wer    wer   NA     NA     NA     NA
wref    vrw     vwr    vwr   wref   vrw    vwr    vwr

使用上面的代码，我当前获得了df_2的第二行的Nas，但是由于列Head和Tail之间至少有一个匹配，所以我希望将该匹配放入新的数据帧join中.我如何调整我的代码来实现这一点？