Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"de ngung chi snippets" » "de nhung chi snippets", "de chung chi snippets", "de dung chi snippets", "de ung chi snippets", "de nang chi snippets", "de trung chi 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: (((("de ngung chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("de ngung chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( de ngung chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("de ngung chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.