Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach hoan se snippets" » "cac khoan se snippets", "hach toan se snippets", "sach han se snippets", "cach hoang de snippets", "cach hoang le snippets", "cach hoang sa 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: (((("cach hoan se snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach hoan se snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach hoan se snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach hoan se snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.