Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chua le doan snippets" » "chua xe doan snippets", "cua le doan snippets", "chuan he doan snippets", "chua le dan snippets", "chua ly doanh snippets", "chua le hoang 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: (((("chua le 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: (((("chua le doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua le doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.