Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi du con snippets" » "phi dau con snippets", "pha du con snippets", "phi xu con snippets", "phi duc con snippets", "phi dung con snippets", "phi 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: (((("phi 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: (((("phi du con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi du con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi du con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.