Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap vat soi snippets" » "phap luat soi snippets", "phap phat soi snippets", "phap viet soi snippets", "phap vat doi snippets", "phap vat moi snippets", "phap vat noi 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 soi 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 soi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap vat soi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap vat soi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.