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