Perhaps you should try some spelling variations:
"trinh cac data slippers" » "trinh cau data slippers", "trinh chat data slippers", "trinh chao data slippers", "trinh cac dan slippers", "trinh cac dang slippers", "trinh cac dai slippers", "trinh cac data slippery", "trinh cac data grippers"
"dung java java snippets" » "dung va java 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: (((("trinh cac 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: (((("trinh cac data slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh cac data slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh cac data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.