Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu viet cua snippets" » "che viet cua snippets", "khau viet cua snippets", "su viet cua snippets", "chu viec cua snippets", "chu viet ca snippets", "chu viet qua 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: (((("chu viet cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu viet cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu viet cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu viet cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.