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