Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban chat cho snippets" » "van chat cho snippets", "bao chat cho snippets", "luan chat cho snippets", "ban chat co snippets", "ban chat thom snippets", "ban cap 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 chat 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 chat cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban chat cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban chat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.