Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"data using java snippets" » "data using data snippets"
"dung danh trac snippets" » "dung doanh trac snippets", "dung dan trac snippets", "dung dang trac snippets", "dung anh trac snippets", "dung dang tran snippets", "dung danh thuc 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: (((("dung danh trac snippets") or ("data using java snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung danh trac snippets") OR ("data using java snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dung danh trac snippets ) or ( data using java snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dung danh trac snippets") or ("data using java snippets"))) or ("locating bug code slippers"))*.