Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu khang di snippets" » "huu han di snippets", "huu hanh di snippets", "huu hang di snippets", "huu khang vi snippets", "huu khang voi 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: (((("huu khang di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu khang di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu khang di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu khang di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.