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