Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets"
"dung lao chet snippets" » "dung lam chet snippets", "dung bao chet snippets", "dung lai chet snippets", "dung la chet snippets", "dung cao chat snippets", "dung bao che 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 lao chet 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 lao chet snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lao chet snippets ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lao chet snippets") or ("data using java snippets"))) or ("locating bug code snippets"))*.