Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao dan cu snippets" » "dao van cu snippets", "cao dang cu snippets", "dao dong cu snippets", "dao dan cua snippets", "dao dan ca snippets", "dao dan su 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 dan cu 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 dan cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao dan cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao dan cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.