Perhaps you should try some spelling variations:
"ho chieu cac snippets" » "ho hieu cac snippets", "ho chieu cao snippets", "ho thieu cac snippets", "theo chieu cac snippets", "hoc thieu cac snippets", "doi chieu 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 chieu 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 chieu cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ho chieu cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ho chieu cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.