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