Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hoa den snippets" » "thi hoan den snippets", "thi ha den snippets", "thi hong den snippets", "thi hoa dien snippets", "thi hoat den snippets", "thi hoa dan 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: (((("thi hoa den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi hoa den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hoa den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hoa den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.