Perhaps you should try some spelling variations:
"dang khoi tinh snippets" » "dung khoa tinh snippets", "hang khoa tinh snippets", "dang hoi tinh snippets", "dang khoi kinh snippets", "dang khoa tinh snippets", "dang khoi tinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dang khoi tinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang khoi tinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang khoi tinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang khoi tinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.