Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban cho du snippets" » "ban cheo du snippets", "bang cho du snippets", "ban co du snippets", "ban cho cu snippets", "ban cho tu snippets", "ban cho duoc 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: (((("ban cho 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: (((("ban cho du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban cho du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban cho du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.