Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"trong quan can snippets" » "thong quan can snippets", "tong quan can snippets", "thong quang can snippets", "trong quan cau snippets", "trong quan van snippets", "trong xuan can snippets"
"dung java java snippets" » "dung va java 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: (((("trong quan can snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong quan can snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( trong quan can snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong quan can snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.