Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha tap nghe snippets" » "pha cap nghe snippets", "pha tam nghe snippets", "pha tao nghe snippets", "phan tap nghe snippets", "pham tai nghe 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: (((("pha tap nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha tap nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha tap nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha tap nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.