Perhaps you should try some spelling variations:
"tong hoi trach snippets" » "tong hoi trac snippets", "tong bo trach snippets", "tong co trach snippets", "thong hoi trach snippets", "tong khoi trach snippets", "trong hoi trach snippets", "tong hoi trach 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: (((("tong hoi trach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tong hoi trach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tong hoi trach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tong hoi trach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.