Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"san viet mon snippets" » "gian viet mon snippets", "anh viet mon snippets", "san vien mon snippets", "san viet man snippets", "san viet mo 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: (((("python using java snippets") or ("san viet mon snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("san viet mon snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( san viet mon snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("san viet mon snippets"))) or ("locating bug code snippets"))*.