fix: tweak search

.vitepress/config.mts

@@ -78,7 +78,24 @@ export default defineConfig({
   themeConfig: {
     search: {
       options: {
-        miniSearch: { searchOptions: { combineWith: "AND" } },
+        miniSearch: {
+          searchOptions: {
+            combineWith: "AND",
+            fuzzy: false,
+            // @ts-ignore
+            boostDocument: (_, term, storedFields: Record<string, string | string[]>) => {
+              const titles = (storedFields?.titles as string[])
+                .filter((t) => !!t)
+                .map((t) => t.toLowerCase());
+              // Uprate if term appears in titles. Add bonus for higher levels (i.e. lower index)
+              const titleIndex =
+                titles.map((t, i) => (t?.includes(term) ? i : -1)).find((i) => i >= 0) ?? -1;
+              if (titleIndex >= 0) return 10000 - titleIndex;
+
+              return 1;
+            },
+          },
+        },
         detailedView: true,
       },
       provider: "local",