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