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