Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using java java snippets" » "using data java snippets", "using java java slippers"
"phan duc trac snippets" » "pham duc trac snippets", "phan tu trac snippets", "phan dau trac snippets", "phan duc thach snippets", "phan duc tan snippets", "phan duc toan snippets", "phan duc trac slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan duc trac snippets") or ("using java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan duc trac snippets") OR ("using java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( phan duc trac snippets ) or ( using java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan duc trac snippets") or ("using java java snippets"))) or ("locating bugs code snippets"))*.