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