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