Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot thuc da snippets" » "mo thuc da snippets", "hoc thuc da snippets", "do thuc da snippets", "mot thuc dan snippets", "mot thuc day snippets", "mot thuc dia 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: (((("mot thuc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mot thuc da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot thuc da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot thuc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.