Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc thi do snippets" » "thuc thai do snippets", "thuc thuc do snippets", "luc thi do snippets", "thuc thi dao snippets", "thuc thi mo snippets", "thuc thi bo 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: (((("thuc thi do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc thi do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc thi do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc thi do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.