Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach hoc de snippets" » "bac hoc de snippets", "cach hoc de snippets", "bach hoa de snippets", "bach hoc he snippets", "bach hoc te snippets", "bach hoc do 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: (((("bach hoc de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bach hoc de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bach hoc de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach hoc de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.