Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam chao chu snippets" » "nam cao chu snippets", "nam cham chu snippets", "nam khao chu snippets", "nam cho chu snippets", "nam cua chu snippets", "nam cao 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: (((("nam chao chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam chao chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam chao chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam chao chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.