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