Perhaps you should try some spelling variations:
"dang sinh sach snippets" » "dang dinh sach snippets", "khang sinh sach snippets", "dang hanh sach snippets", "dang chinh sach snippets", "dang sinh san snippets", "dang sang sach snippets", "dang sinh sach 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: (((("dang sinh sach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang sinh sach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang sinh sach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang sinh sach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.