Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trong ca chan snippets" » "trong cac chan snippets", "trong van chan snippets", "trong nha chan snippets", "trong cam chan snippets", "trong ca chang snippets", "trong can chan 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 chan 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 chan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong ca chan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong ca chan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.