Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu quy toan snippets" » "thu huy toan snippets", "thu quy tuan snippets", "thu quyet toan snippets", "thue quy toan snippets", "tu quy toan snippets", "phu quy 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: (((("thu quy 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: (((("thu quy toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu quy toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu quy toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.