Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"phan kiem java slippers" » "phan kien java slippers", "phan mem java slippers", "van kiem java slippers", "phan kiem va slippers", "phan kiem java slippery", "phan kiem 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 kiem 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 kiem java slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan kiem java slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan kiem java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.