Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lei vu cac snippets" » "le vu cac snippets", "lei wu cac snippets", "lei va cac snippets", "lei tu cac snippets", "lei ve cac 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: (((("lei vu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lei vu cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lei vu cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lei vu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.