Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuc hat cua snippets" » "vuc ha cua snippets", "tuc hat cua snippets", "luc nhat cua snippets", "vuc nhat cua snippets", "vuc chat cua snippets", "vuc phat cua 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: (((("vuc hat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vuc hat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuc hat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuc hat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.