Perhaps you should try some spelling variations:
"trong tuc chat snippets" » "trong thuc chat snippets", "trong cuoc chat snippets", "trong nuoc chat snippets", "trong tuc hat snippets", "trong muc chat snippets", "trong tuc cham 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: (((("trong tuc chat 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 tuc chat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong tuc chat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong tuc chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.