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