Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hanh big data slippers" » "hanh vi data slippers", "hanh tin data slippers", "anh bia data slippers", "hanh big data slippery", "hanh big data grippers"
"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: (((("hanh big data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh big data slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh big data slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh big data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.