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