Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung quang can snippets" » "dang quang can snippets", "luong quang can snippets", "dung luan can snippets", "dung quang chan snippets", "dung quang cao snippets", "dung quang ban snippets"
"hanh java java snippets" » "hanh va java 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: (((("hanh java java snippets") or ("dung quang can snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh java java snippets") OR ("dung quang can snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( hanh java java snippets ) or ( dung quang can snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh java java snippets") or ("dung quang can snippets"))) or ("locating bugs code snippets"))*.