Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huong ben di snippets" » "huong den di snippets", "cuong bien di snippets", "huong dan di snippets", "huong ben dai snippets", "huong bien di 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: (((("huong ben 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: (((("huong ben di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huong ben di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huong ben di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.