Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat hang du snippets" » "mat bang du snippets", "dat hang du snippets", "tat thang du snippets", "mat hang dau snippets", "mat hoang du snippets", "mat nang du 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: (((("mat hang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat hang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat hang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat hang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.