Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung using java snippets" » "dung ung java snippets", "dung sinh java snippets", "dung uong java snippets", "dung using data snippets"
"duong mat can snippets" » "duong ma can snippets", "luong mat can snippets", "duong manh can snippets", "duong bat can snippets", "duong mat dan snippets", "duong mao can 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 using java snippets") or ("duong mat can snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung using java snippets") OR ("duong mat can snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung using java snippets ) or ( duong mat can snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung using java snippets") or ("duong mat can snippets"))) or ("locating bugs code snippets"))*.