Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat tang cho snippets" » "ha tang cho snippets", "hao tang cho snippets", "nhat trang cho snippets", "hat trang cho snippets", "hat sang cho snippets", "hat hang cho 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: (((("hat tang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat tang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat tang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat tang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.