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