Perhaps you should try some spelling variations:
"canh trinh hoi snippets" » "canh tranh hoi snippets", "hanh trinh hoi snippets", "canh tinh hoi snippets", "canh trinh hoa snippets", "canh trinh do snippets", "canh trinh han 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: (((("canh trinh hoi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("canh trinh hoi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( canh trinh hoi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("canh trinh hoi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.