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