Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu hoai da snippets" » "thi hoai da snippets", "thu hai da snippets", "thu hoan da snippets", "thu hoai va snippets", "thu thoai dan snippets", "thu hoai nam 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: (((("thu hoai da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu hoai da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu hoai da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu hoai da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.