Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nam hang o2 snippets" » "nam hang code snippets", "nam thang o2 snippets", "nam khang o2 snippets", "nam dang o2 snippets", "nam hang hoa snippets", "nam hang rok snippets", "nam hang ton snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("nam hang o2 snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("nam hang o2 snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( nam hang o2 snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("nam hang o2 snippets"))) or ("locating bug core snippets"))*.