Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao co don snippets" » "dao cao don snippets", "dao cho don snippets", "dao o don snippets", "dao co dong snippets", "dao co dan snippets", "dao co dot 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: (((("dao co don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao co don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao co don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao co don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.