Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trong la chet snippets" » "trong lam chet snippets", "trong lan chet snippets", "trong lac chet snippets", "trong la che snippets", "trong cai chet snippets", "trong va chiet 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 ("trong la chet snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trong la chet snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trong la chet snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trong la chet snippets"))) or ("locating bug code snippets"))*.