Perhaps you should try some spelling variations:
"danh thuc hinh snippets" » "dan thuc hinh snippets", "anh thuc hinh snippets", "dinh thuc hinh snippets", "danh thuoc hinh snippets", "danh thuc hanh snippets", "danh phuc hinh snippets", "danh thuc hinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("danh thuc hinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh thuc hinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh thuc hinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh thuc hinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.