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