Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban zu cho snippets" » "ban tu cho snippets", "ban su cho snippets", "ban xu cho snippets", "ban cu cho snippets", "ban uu cho snippets", "ban vu cho 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 zu cho 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 zu cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban zu cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban zu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.