Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trong ca chap snippets" » "trong cac chap snippets", "trong van chap snippets", "trong nha chap snippets", "trong cau chap snippets", "trong ca cham snippets", "trong ca chep 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: (((("trong ca chap snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong ca chap snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong ca chap snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong ca chap snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.