Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han day cho snippets" » "phan day cho snippets", "han dau cho snippets", "dan day cho snippets", "han dac cho snippets", "han danh 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: (((("han day 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: (((("han day cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han day cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han day cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.