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