Perhaps you should try some spelling variations:
"nang dua trinh snippets" » "nang qua trinh snippets", "nang xuan trinh snippets", "nang quy trinh snippets", "nang du trinh snippets", "nang suat trinh snippets", "nang quan trinh snippets", "nang dua 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: (((("nang dua 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: (((("nang dua trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang dua trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang dua trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.