Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuan anh voi snippets" » "tuan hanh voi snippets", "tuan lanh voi snippets", "tuan anh noi snippets", "quan anh voi snippets", "tran anh voi snippets", "luan anh voi 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: (((("tuan 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: (((("tuan anh voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuan anh voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuan anh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.