Perhaps you should try some spelling variations:
"duoc doi trinh snippets" » "duoc doc trinh snippets", "duoc doi tinh snippets", "duoc dong trinh snippets", "cuoc doi trinh snippets", "duoc hoi trinh snippets", "luoc doi trinh snippets", "duoc doi trinh slippers"
"dung va java snippets" » "dung java java snippets", "dung va 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: (((("dung va java snippets") or ("duoc doi trinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung va java snippets") OR ("duoc doi trinh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung va java snippets ) or ( duoc doi trinh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung va java snippets") or ("duoc doi trinh snippets"))) or ("locating bug code snippets"))*.