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