Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung tiem can snippets" » "dung tiem code snippets", "dung tieu can snippets", "dung tien can snippets", "dung thiet can snippets", "dung tiep can snippets", "dung tiem nang snippets", "dung dieu 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: (((("dung tiem can snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tiem can snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung tiem can snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tiem can snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.