Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hong het cho snippets" » "hong viet cho snippets", "hong ha cho snippets", "khong he cho snippets", "hong chat cho snippets", "hong hiem cho snippets", "hong thep cho 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 ("hong het cho snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("hong het cho snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( hong het cho snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("hong het cho snippets"))) or ("locating bug code snippets"))*.