Perhaps you should try some spelling variations:
"tinh duc trinh snippets" » "tinh duc thinh snippets", "tinh doc trinh snippets", "tinh qua trinh snippets", "minh duc trinh snippets", "dinh duc trinh snippets", "ninh duc trinh snippets", "tinh duc 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: (((("tinh duc 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: (((("tinh duc trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh duc trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh duc trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.