Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho du con snippets" » "cho cu con snippets", "cho tu con snippets", "cho duoc con snippets", "cho duc con snippets", "cho dung con snippets", "cho dieu con 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: (((("cho du con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho du con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho du con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho du con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.