Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua cua phe snippets" » "quan cua phe snippets", "quang cua phe snippets", "qua quan phe snippets", "qua ca phe snippets", "qua cua che snippets", "qua cua he 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: (((("qua cua phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua cua phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua cua phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua cua phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.