Perhaps you should try some spelling variations:
"moi quan trinh snippets" » "moi qua trinh snippets", "moi quan tinh snippets", "moi xuan trinh snippets", "mai quan trinh snippets", "hai quan trinh snippets", "co quan trinh snippets", "moi quan 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: (((("moi quan 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: (((("moi quan trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi quan trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi quan trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.