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