Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu vat den snippets" » "thuc vat den snippets", "thu va den snippets", "thuat vat den snippets", "thu vat dien snippets", "thu van den 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: (((("thu vat 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: (((("thu vat den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu vat den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu vat den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.