Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban dan hong snippets" » "ban dan phong snippets", "ban dan dong snippets", "ban dai hong snippets", "ban hang hong snippets", "ban hanh hong snippets", "ban quan hong 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: (((("ban dan hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban dan hong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban dan hong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban dan hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.