Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat quoc de snippets" » "luat duoc de snippets", "luan quoc de snippets", "thuat quoc de snippets", "luat quoc te snippets", "luat buoc de snippets", "luat quoc ve 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: (((("luat quoc de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat quoc de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat quoc de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat quoc de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.