Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi quy dot snippets" » "tai quy dot snippets", "thien quy dot snippets", "thi quynh dot snippets", "thi quy don snippets", "thi quy dat snippets", "thi duy dot 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: (((("thi quy dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi quy dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi quy dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi quy dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.