Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"doi thieu cua snippets" » "doi chieu cua snippets", "gioi thieu cua snippets", "toc thieu cua snippets", "doi hieu cua snippets", "doi dieu cua snippets", "doi bieu cua snippets"
"locating bug code snippets" » "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: (((("dung java java snippets") or ("doi thieu cua snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("doi thieu cua snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( doi thieu cua snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("doi thieu cua snippets"))) or ("locating bug code snippets"))*.