Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sieu pham do snippets" » "hieu pham do snippets", "su pham do snippets", "lieu phap do snippets", "sieu pham doi snippets", "sieu pham mo snippets", "sieu pham o 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: (((("sieu pham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sieu pham do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sieu pham do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sieu pham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.