Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat ho chu snippets" » "nhat cho chu snippets", "nhat hoa chu snippets", "nhat so chu snippets", "nhat hoi chu snippets", "nhat ho chua 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: (((("nhat ho 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: (((("nhat ho chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat ho chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat ho chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.