Perhaps you should try some spelling variations:
"than dieu trinh snippets" » "than tieu trinh snippets", "than dieu tri snippets", "than diep tinh snippets", "nhan dieu trinh snippets", "han dieu trinh snippets", "thuat dieu trinh snippets", "than dieu trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java 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: (((("than dieu trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than dieu trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than dieu trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than dieu trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.