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