Perhaps you should try some spelling variations:
"dung qua trinh snippets" » "dung qua kinh snippets", "duong qua trinh snippets", "dung quan trinh snippets", "dung cua trinh snippets", "dung qua trinh slippers"
"dung cu code snippets" » "dung cua code snippets", "dung co code snippets", "dung cho code snippets", "dung cfd code snippets", "dung cu code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 qua trinh snippets") or ("dung cu code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung qua trinh snippets") OR ("dung cu code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung qua trinh snippets ) or ( dung cu code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung qua trinh snippets") or ("dung cu code snippets"))) or ("locating bug code snippets"))*.