Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuc chat co snippets" » "muc chat co snippets", "vu chat co snippets", "duoc chat co snippets", "vuc thuat co snippets", "vuc chat cua snippets", "vuc chat deo 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 chat co 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 chat co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuc chat co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuc chat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.