Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lay dan canh snippets" » "lay van canh snippets", "lay dan cach snippets", "lay dan hanh snippets", "cay dan canh snippets", "bay dan canh snippets", "day 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: (((("lay 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: (((("lay dan canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lay dan canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lay dan canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.