Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"san huu toan snippets" » "san huu tuan snippets", "san cuu toan snippets", "san huy toan snippets", "tran huu toan snippets", "phan huu toan snippets", "san khau toan 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: (((("san huu toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("san huu toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( san huu toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("san huu toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.