Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri bai cung snippets" » "tri ai cung snippets", "tri ban cung snippets", "tri dai cuong snippets", "troi bai cung snippets", "tri tai cung 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: (((("tri bai cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri bai cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri bai cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri bai cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.