Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang su le snippets" » "dang su le snippets", "nang du le snippets", "nang tu le snippets", "nang vu le snippets", "nang su ve 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 su le 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 su le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang su le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang su le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.