Perhaps you should try some spelling variations:
"phap kha trinh snippets" » "phap qua trinh snippets", "phap ha tinh snippets", "phap tra trinh snippets", "phap khoa trinh snippets", "phap khac trinh snippets", "phap khang trinh snippets", "phap kha trinh 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: (((("phap kha trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap kha trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap kha trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap kha trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.