Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha tan doan snippets" » "pha tran doan snippets", "pha tap doan snippets", "pha van doan snippets", "pha ban doan snippets", "pha san doan 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 tan doan 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 tan doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha tan doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha tan doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.