Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu pham chi snippets" » "thuc pham chi snippets", "thu phan chi snippets", "thuc phan chi snippets", "thu pham thi snippets", "thu tham chi snippets", "thu pham chieu 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 pham chi 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 pham chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu pham chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu pham chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.