Perhaps you should try some spelling variations:
"tung dang hanh snippets" » "tung dan hanh snippets", "dung dang hanh snippets", "truong dang hanh snippets", "tung dang thanh snippets", "tung ban hanh snippets", "tung dang van snippets", "tung dang hanh 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: (((("tung dang hanh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung dang hanh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung dang hanh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung dang hanh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.