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