configuration dont work as expected

[nuclear06]

following is part of my provider configuration

providers = {
        emoji = {
          module = "blink-emoji",
          name = "Emoji",
          score_offset = 15, -- Tune by preference
        },
        lsp = {
          name = "lsp",
          module = "blink.cmp.sources.lsp",
          kind = "LSP",
          score_offset = 900,
        },
        luasnip = {
          name = "luasnip",
          module = "blink.cmp.sources.luasnip",
          score_offset = 800,
          // min_keyword_length = 3,
          // max_items = 4,
        },
        -- this source will check ~/.config/nvim/snippets for custom snippets
        -- only support vscode stlye snippets
        snippets = {
          name = "snippets",
          module = "blink.cmp.sources.snippets",
          score_offset = 910,
          min_keyword_length = 3,
          max_items = 4,
          should_show_items = function(ctx)
            return ctx.trigger.initial_kind ~= "trigger_character"
          end,
        },
        path = {
          score_offset = 1000,
        },
        buffer = {
          score_offset = 600,
        },
        copilot = {
          name = "copilot",
          module = "blink-cmp-copilot",
          score_offset = 10,
        },
      }

main focus on these three plugins 'luasnip' 'snippets' 'lsp'

when I use this configuration

        luasnip = {
          name = "luasnip",
          module = "blink.cmp.sources.luasnip",
          score_offset = 800,
          // min_keyword_length = 3,
          // max_items = 4,
        },

complement looks like

when i uncomment these lines

          // min_keyword_length = 3,
          // max_items = 4,

It becomes

and this is my expected behavior

---

since lsp has a higher score_offset than luasnip, these snippet completions should come from the snippets plugin, why changing the configuration of luasnip affect the behavior of snippets?