Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khuc van du snippets" » "thuc van du snippets", "chuc van du snippets", "phuc van du snippets", "khuc van duy snippets", "khuc van dau snippets", "khuc van de 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: (((("khuc van du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khuc van du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khuc van du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khuc van du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.