Perhaps you should try some spelling variations:
"thoi dai trinh snippets" » "thoi dan trinh snippets", "thoi doi trinh snippets", "thoi lap trinh snippets", "hoc dai trinh snippets", "hoi dap trinh snippets", "hoi dan trinh snippets", "thoi dai 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: (((("thoi dai 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: (((("thoi dai trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi dai trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi dai trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.