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