Perhaps you should try some spelling variations:
"tuan hanh trinh snippets" » "tuan canh tranh snippets", "tuan hanh chinh snippets", "tuan anh trinh snippets", "quan hanh trinh snippets", "toan hanh trinh snippets", "tuan hanh 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: (((("tuan hanh 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: (((("tuan hanh trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuan hanh trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuan hanh trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.