Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu dao le snippets" » "lieu nano le snippets", "lieu va le snippets", "lieu tai le snippets", "lieu do le snippets", "lieu dao ve snippets", "lieu hao le 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 dao 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: (((("lieu dao le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu dao le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu dao le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.