Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java java slippers" » "using data java slippers", "using java java slippery", "using java java grippers"
"van hang java snippets" » "van hang va snippets", "van khang java snippets", "van hoang java snippets", "van thang java 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: (((("using java java slippers") or ("van hang java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java slippers") OR ("van hang java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using java java slippers ) or ( van hang java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java slippers") or ("van hang java snippets"))) or ("locating bugs code snippets"))*.