Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu so he snippets" » "hieu so he snippets", "thieu so he snippets", "lieu hoc he snippets", "lieu so ha snippets", "lieu do he snippets", "lieu so le 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 he 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 he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu so he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu so he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.