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