Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung su cua snippets" » "nhung quy cua snippets", "nhung cau cua snippets", "nhung mau cua snippets", "nhung hu cua snippets", "nhung tu cua snippets", "nhung vu cua 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: (((("nhung su cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung su cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung su cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung su cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.