Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan ban voi snippets" » "nhuan ban voi snippets", "nhat ban voi snippets", "nhan dan voi snippets", "nhan ban moi snippets", "nhan ba voi snippets", "nhan ban 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: (((("nhan ban 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: (((("nhan ban voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan ban voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan ban voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.