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