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