Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan thanh ho snippets" » "dang thanh ho snippets", "danh thanh ho snippets", "ban thanh ho snippets", "dan thanh pho snippets", "dan thanh hoa snippets", "dan thanh hoc 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 ho 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 ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan thanh ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan thanh ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.