Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets"
"dung chi cua snippets" » "dung cho cua snippets", "dung thi cua snippets", "dung chien cua snippets", "dung chi cuc snippets", "dung khi cua snippets", "dung cuoi cua snippets"
"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: (((("dung chi cua snippets") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung chi cua snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung chi cua snippets ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung chi cua snippets") or ("data using java snippets"))) or ("locating bug code snippets"))*.