Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thue va cho snippets" » "thuc va cho snippets", "thuyet va cho snippets", "thuc vat cho snippets", "thue van cho snippets", "thue va co snippets", "thue va che 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: (((("thue va cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thue va cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thue va cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thue va cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.