Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vanh tai hoe snippets" » "van tai hoe snippets", "hanh tai hoe snippets", "anh tai hoe snippets", "vanh tai he snippets", "vanh tai khoa snippets", "vanh thai hoc 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: (((("vanh tai hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vanh tai hoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vanh tai hoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vanh tai hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.