Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuc hat cho snippets" » "tuc hai cho snippets", "tu hat cho snippets", "tuc ha cho snippets", "tuc chat cho snippets", "tuc hat cheo snippets", "tuc nhat 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: (((("tuc hat 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: (((("tuc hat cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuc hat cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuc hat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.