Perhaps you should try some spelling variations:
"ho thiet cac snippets" » "ho thien cac snippets", "ho thieu cac snippets", "ho thuyet cac snippets", "hoc thiet cac snippets", "hoa thiet cac snippets", "so thiet cac snippets"
"dung java java snippets" » "dung va java 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: (((("ho thiet cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ho thiet cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ho thiet cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ho thiet cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.