Perhaps you should try some spelling variations:
"quan lang chai snippets" » "quan hoang chai snippets", "gian lang chai snippets", "quan luan chai snippets", "quan lang ha snippets", "quan lang cua snippets", "quan lang phi 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: (((("quan lang chai snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan lang chai snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan lang chai snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan lang chai snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.