Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam choi du snippets" » "dam cuoi du snippets", "nam chi du snippets", "dam thi du snippets", "dam choi tu snippets", "dam cho du snippets", "dam choi au 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: (((("dam choi 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: (((("dam choi du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam choi du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam choi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.