Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chan van du snippets" » "chuan van du snippets", "phan van du snippets", "nhan van du snippets", "chan van duy snippets", "chan van dau snippets", "chan 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: (((("chan 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: (((("chan van du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chan van du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chan van du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.