Perhaps you should try some spelling variations:
"hoc hoi trach snippets" » "hoc hoi trac snippets", "hoc bo trach snippets", "hoc co trach snippets", "hoc khoi trach snippets", "hoc hoa trach snippets", "hoc noi trach snippets", "hoc 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: (((("hoc 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: (((("hoc hoi trach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc hoi trach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc hoi trach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.