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