Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu ve he snippets" » "lieu va he snippets", "hieu ve he snippets", "lieu de he snippets", "lieu ve che snippets", "lieu ve khe snippets", "lieu ke he 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 ve 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 ve he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu ve he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu ve he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.