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