Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan tan soi snippets" » "nhan tai soi snippets", "nhan dan soi snippets", "nhan tao soi snippets", "nhan tan hoi snippets", "nhan tan son snippets", "nhan tan 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: (((("nhan tan soi 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 tan soi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan tan soi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan tan soi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.