Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van ngoc mo snippets" » "tran ngoc mo snippets", "van hoc mo snippets", "van nghe mo snippets", "van ngoc my snippets", "van ngoc hoa snippets", "van ngoc son 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: (((("van ngoc mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van ngoc mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van ngoc mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van ngoc mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.