Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat ba hoan snippets" » "vat ba hoa snippets", "vat va hoan snippets", "vat van hoan snippets", "vat da hoan snippets", "hat ba hoan 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: (((("vat ba hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vat ba hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat ba hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat ba hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.