Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong trieu can snippets" » "cong trieu code snippets", "dong trieu can snippets", "uong trieu can snippets", "hoang trieu can snippets", "cong tiep can snippets", "cong dieu can snippets", "cong trien san 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 trieu 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: (((("cong trieu can snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong trieu can snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong trieu can snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.