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