Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets", "data using java slippers"
"lan anh code snippets" » "lan anh co snippets", "lan anh cong snippets", "van anh code snippets", "tuan anh code snippets", "lan anh 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 ("lan anh 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 ("lan anh code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( lan anh code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("lan anh code snippets"))) or ("locating bug code snippets"))*.