Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban tat cua snippets" » "ban tai cua snippets", "ban dat cua snippets", "ban tay cua snippets", "ban mat cua snippets", "ban tat ca snippets", "ban bat 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: (((("ban tat 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: (((("ban tat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban tat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban tat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.