Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran anh voi snippets" » "tran manh voi snippets", "tuan anh voi snippets", "tran thanh voi snippets", "tran hanh voi snippets", "tran lanh voi snippets", "tran anh 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: (((("tran anh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran anh voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran anh voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran anh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.