Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hoc phat ca snippets" » "hoc phan ca snippets", "hoc phap ca snippets", "hoc pho ca snippets", "hoc phat cua snippets", "hoc pham ca snippets", "hoc phat ha 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: (((("hoc phat ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc phat ca snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc phat ca snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc phat ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.