Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu tac den snippets" » "lieu tai den snippets", "lieu bac den snippets", "lieu gac den snippets", "lieu tac de snippets", "lieu tat den snippets", "lieu thai den 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 tac den 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 tac den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu tac den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu tac den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.