Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao ly toan snippets" » "khanh ly toan snippets", "khao le toan snippets", "khao ly hoan snippets", "khao ly tran 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: (((("khao ly toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khao ly toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao ly toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao ly toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.