diff --git a/adminer/include/adminer.inc.php b/adminer/include/adminer.inc.php
index 550f7558..96d3301a 100644
--- a/adminer/include/adminer.inc.php
+++ b/adminer/include/adminer.inc.php
@@ -402,9 +402,12 @@ username.form['auth[driver]'].onchange();
 					// find anywhere
 					$cols = array();
 					foreach ($fields as $name => $field) {
-						if (is_numeric($val["val"]) || !ereg('int|float|double|decimal|bit', $field["type"])) {
+						$is_text = ereg('char|text|enum|set', $field["type"]);
+						if ((is_numeric($val["val"]) || !ereg('int|float|double|decimal|bit', $field["type"]))
+							&& (!ereg("[\x80-\xFF]", $val["val"]) || $is_text)
+						) {
 							$name = idf_escape($name);
-							$cols[] = ($jush == "sql" && ereg('char|text|enum|set', $field["type"]) && !ereg('^utf8', $field["collation"]) ? "CONVERT($name USING utf8)" : $name);
+							$cols[] = ($jush == "sql" && $is_text && !ereg('^utf8', $field["collation"]) ? "CONVERT($name USING utf8)" : $name);
 						}
 					}
 					$return[] = ($cols ? "(" . implode("$cond OR ", $cols) . "$cond)" : "0");
diff --git a/adminer/include/functions.inc.php b/adminer/include/functions.inc.php
index fb8cd35b..0b66248f 100644
--- a/adminer/include/functions.inc.php
+++ b/adminer/include/functions.inc.php
@@ -798,12 +798,14 @@ function search_tables() {
 		$name = $adminer->tableName($table_status);
 		if (isset($table_status["Engine"]) && $name != "" && (!$_POST["tables"] || in_array($table, $_POST["tables"]))) {
 			$result = $connection->query("SELECT" . limit("1 FROM " . table($table), " WHERE " . implode(" AND ", $adminer->selectSearchProcess(fields($table), array())), 1));
-			if ($result->fetch_row()) {
+			if (!$result || $result->fetch_row()) {
 				if (!$found) {
 					echo "<ul>\n";
 					$found = true;
 				}
-				echo "<li><a href='" . h(ME . "select=" . urlencode($table) . "&where[0][op]=" . urlencode($_GET["where"][0]["op"]) . "&where[0][val]=" . urlencode($_GET["where"][0]["val"])) . "'>$name</a>\n";
+				echo "<li>" . ($result
+					? "<a href='" . h(ME . "select=" . urlencode($table) . "&where[0][op]=" . urlencode($_GET["where"][0]["op"]) . "&where[0][val]=" . urlencode($_GET["where"][0]["val"])) . "'>$name</a>\n"
+					: "$name: <span class='error'>" . error() . "</span>\n");
 			}
 		}
 	}