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