Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra du cu snippets" » "tra tu cu snippets", "tran duc cu snippets", "tran duy cu snippets", "tra cu cu snippets", "tra su cu snippets", "tra da cu 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: (((("tra du cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra du cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra du cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra du cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.