Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets", "data using java slippers"
"nhung cu code snippets" » "nhung cau code snippets", "nhung chu code snippets", "chung cu code snippets", "nhung cfd code snippets", "nhung cu 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: (((("nhung cu code snippets") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung cu code snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung cu code snippets ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung cu code snippets") or ("data using java snippets"))) or ("locating bug code snippets"))*.