Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"du lieu nu snippets" » "du lieu tu snippets", "du lieu luu snippets", "du lieu nha snippets", "du lieu nu slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("du lieu nu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("du lieu nu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( du lieu nu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("du lieu nu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.