Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duong thuc can snippets" » "duong thuc code snippets", "luong thuc can snippets", "duong thu can snippets", "duong thuy can snippets", "duong thuc chan snippets", "duong thuc dan snippets", "duong thuc van 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 thuc 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: (((("duong thuc can snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duong thuc can snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong thuc can snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.