Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"phan duc java slippers" » "pham duc java slippers", "phan tu java slippers", "phan dau java slippers", "phan duc va slippers", "phan duc java slippery", "phan duc java grippers"
"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: (((("phan duc java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan duc java slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan duc java slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan duc java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.