Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao xuan da snippets" » "do xuan da snippets", "ngo xuan da snippets", "dao van da snippets", "dao xuan dua snippets", "dao xuan dam snippets", "dao xuan dan 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 xuan da 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 xuan da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao xuan da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao xuan da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.