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