Perhaps you should try some spelling variations:
"hoang tran tu snippets" » "hoang tuan tu snippets", "hoang thanh tu snippets", "hoang van tu snippets", "hoang tran tuan snippets", "hoang tran thuy snippets", "hoang tran thi snippets", "hoang tran tu slippers"
"dung vbug code snippets" » "dung vung code snippets", "dung vbug code slippers", "dung vbung code snippets", "dung vbugs code snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 vbug code snippets") or ("hoang tran tu snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung vbug code snippets") OR ("hoang tran tu snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung vbug code snippets ) or ( hoang tran tu snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vbug code snippets") or ("hoang tran tu snippets"))) or ("locating bug code snippets"))*.