Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hut dieu con snippets" » "thuat dieu con snippets", "thuc dieu con snippets", "luat dieu con snippets", "hut dieu can snippets", "hut diet con snippets", "hut dieu co 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: (((("hut dieu con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hut dieu con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hut dieu con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hut dieu con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.