Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung bai chat snippets" » "dung tai chat snippets", "dung sai chat snippets", "dung hai chat snippets", "dung bai hat snippets", "dung ban chat snippets", "dung bao chat 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: (((("dung bai chat snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung bai chat snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung bai chat snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung bai chat snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.