Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duy thi cong snippets" » "duy tai cong snippets", "duy thien cong snippets", "duy thai cong snippets", "duy tri cong snippets", "day thi cong snippets"
"locating bug code snippets" » "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: (((("duy thi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duy thi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duy thi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duy thi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.