Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thuc viet can snippets" » "thuc viet code snippets", "hoc viet can snippets", "thuc hien can snippets", "thuc vat can snippets", "thuc viet van snippets", "thuc viet ca snippets", "thuc vien 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: (((("thuc viet 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: (((("thuc viet can snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thuc viet can snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc viet can snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.