Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang si du snippets" » "nang su du snippets", "nang ji du snippets", "nang sinh du snippets", "nang so du snippets", "nang si da snippets", "nang li 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: (((("nang si 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: (((("nang si du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang si du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang si du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.