Perhaps you should try some spelling variations:
"toan tho trinh snippets" » "toan tho tinh snippets", "toan tao trinh snippets", "toan thi trinh snippets", "toan ho trinh snippets", "toan cho trinh snippets", "toan thong trinh snippets", "toan tho 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: (((("toan tho 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: (((("toan tho trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan tho trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan tho trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.