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