Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi cua di snippets" » "hoi cua di snippets", "khi cua di snippets", "kho cua di snippets", "khoi cua dai snippets", "khoi cua dia snippets", "khoi cua vi 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: (((("khoi cua di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi cua di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi cua di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi cua di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.