Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"lan chi cong snippets" » "lan thi cong snippets", "lan cho cong snippets", "lan phi cong snippets", "luan chi cong snippets", "van chi cong snippets", "san chi cong 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: (((("lan chi cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan chi cong snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan chi cong snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan chi cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.