Perhaps you should try some spelling variations:
"hanh thanh ca snippets" » "nhanh thanh ca snippets", "thanh thanh ca snippets", "khanh thanh ca snippets", "hanh thanh cha snippets", "hanh thanh cac snippets", "hanh thanh ha 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: (((("hanh thanh ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh thanh ca snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh thanh ca snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh thanh ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.