Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duong dung co snippets" » "duong dung code snippets", "cuong dung co snippets", "dung dung co snippets", "duong dang co snippets", "duong dung cho snippets", "duong dung cong snippets", "duong dung cua 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: (((("duong dung co snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong dung co snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duong dung co snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong dung co snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.