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