Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan thanh bo snippets" » "dang thanh bo snippets", "danh thanh bo snippets", "ban thanh bo snippets", "dan thanh do snippets", "dan thanh ba snippets", "dan thanh ho 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: (((("dan thanh bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan thanh bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan thanh bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan thanh bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.