Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung mot chat snippets" » "dung mo chat snippets", "dung co chat snippets", "dung dat chat snippets", "dung mot chut snippets", "dung hoat chat snippets", "dung soat 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 mot 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 mot chat snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung mot chat snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mot chat snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.