Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu bao cu snippets" » "lieu bai cu snippets", "lieu dao cu snippets", "lieu ban cu snippets", "lieu bao cua snippets", "lieu tao cu snippets", "lieu bao co 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 bao cu 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 bao cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu bao cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu bao cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.