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