Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu so da snippets" » "hieu so da snippets", "thieu so da snippets", "lieu hoc da snippets", "lieu so dac snippets", "lieu so dan snippets", "lieu so dia 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: (((("lieu so da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lieu so da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu so da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu so da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.