Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao den mot snippets" » "nao de mot snippets", "dao den mot snippets", "nao dep mot snippets", "nao nen mot snippets", "nao dung mot 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: (((("nao den mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao den mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao den mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao den mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.