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