Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tich he cho snippets" » "tich ho cho snippets", "trinh he cho snippets", "tich hop cho snippets", "tich he cheo snippets", "tich het cho snippets", "tich he 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: (((("tich he 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: (((("tich he cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tich he cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tich he cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.