Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu tham du snippets" » "lieu tai du snippets", "lieu phap du snippets", "lieu thap du snippets", "lieu tham do snippets", "lieu pham duc 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 tham 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: (((("lieu tham du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu tham du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu tham du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.