Perhaps you should try some spelling variations:
"dung doi chieu snippets" » "dung doi code snippets", "dung doc hieu snippets", "dung doi chi snippets", "dung ho chieu snippets", "huong doi chieu snippets", "dung tai chieu snippets", "dung co chieu snippets"
"locating bug core snippets" » "locating bug code 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: (((("dung doi chieu snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung doi chieu snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung doi chieu snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung doi chieu snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.