Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra chat cho snippets" » "tran chau cho snippets", "tran nhat cho snippets", "hoa chat cho snippets", "tra chat co snippets", "tra chat thom snippets", "tra cap cho 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 cho 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 cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra chat cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra chat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.