Perhaps you should try some spelling variations:
"dung dang thi snippets" » "dung dan thi snippets", "dung dong thi snippets", "dung danh thi snippets", "dung hoang thi snippets", "dung dang khoi snippets", "dung dang thi slippers"
"dung cuc code snippets" » "dung cua code snippets", "dung cu code snippets", "dung cac code snippets", "dung cfd code snippets", "dung cuc 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 dang thi snippets") or ("dung cuc code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dang thi snippets") OR ("dung cuc code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dang thi snippets ) or ( dung cuc code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dang thi snippets") or ("dung cuc code snippets"))) or ("locating bug code snippets"))*.