Perhaps you should try some spelling variations:
"can tranh hoi snippets" » "canh tranh hoi snippets", "tan tran hoi snippets", "van ranh hoi snippets", "can trinh hoi snippets", "can thanh hoai snippets", "can tranh thai 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: (((("can tranh 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: (((("can tranh hoi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can tranh hoi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can tranh hoi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.