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