Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan soc du snippets" » "dan toc du snippets", "dan hoc du snippets", "dan so du snippets", "dan soc dieu snippets", "dan soc duoc 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 soc du 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 soc du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan soc du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan soc du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.