Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"dung mat dan snippets" » "duong mat dan snippets", "dung dat dan snippets", "dung may dan snippets", "dung hat dan snippets", "dung luat dan snippets", "dung mat bang snippets", "dung mat dan slippers"
"locating bug code snippets" » "locating bug code slippers", "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 mat dan snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung mat dan snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung mat dan snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mat dan snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.