Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets", "data using java slippers"
"luan phan code snippets" » "luan van code snippets", "luan hoan code snippets", "luan phan cong snippets", "luan phan co snippets", "luan phan che snippets", "luan phan code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("data using java snippets") or ("luan phan code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using java snippets") OR ("luan phan code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( luan phan code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("luan phan code snippets"))) or ("locating bug code snippets"))*.