Perhaps you should try some spelling variations:
"hoan tran data slippers" » "hoang tran data slippers", "thoan tran data slippers", "toan tran data slippers", "hoan tran dang slippers", "hoan tan dat slippers", "hoan tran dam slippers", "hoan tran data slippery", "hoan tran 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: (((("hoan tran 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: (((("hoan tran data slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoan tran data slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoan tran data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.