Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang da cu snippets" » "hang dau cu snippets", "hang dam cu snippets", "hoang da cu snippets", "hang da cau snippets", "hang dan cu snippets", "hang da cua 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: (((("hang da 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: (((("hang da cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang da cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang da cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.